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• What are developer's problems with helpful error messages?

  - by Moo-Juice

  It continue to astounds me that, in this day and age, products that have years of use under their belt, built by teams of professionals, still to this day - fail to provide helpful error messages to the user. In some cases, the addition of just a little piece of extra information could save a user hours of trouble. A program that generates an error, generated it for a reason. It has everything at its disposal to inform the user as much as it can, why something failed. And yet it seems that providing information to aid the user is a low-priority. I think this is a huge failing. One example is from SQL Server. When you try and restore a database that is in use, it quite rightly won't let you. SQL Server knows what processes and applications are accessing it. Why can't it include information about the process(es) that are using the database? I know not everyone passes an Applicatio_Name attribute on their connection string, but even a hint about the machine in question could be helpful. Another candidate, also SQL Server (and mySQL) is the lovely string or binary data would be truncated error message and equivalents. A lot of the time, a simple perusal of the SQL statement that was generated and the table shows which column is the culprit. This isn't always the case, and if the database engine picked up on the error, why can't it save us that time and just tells us which damned column it was? On this example, you could argue that there may be a performance hit to checking it and that this would impede the writer. Fine, I'll buy that. How about, once the database engine knows there is an error, it does a quick comparison after-the-fact, between values that were going to be stored, versus the column lengths. Then display that to the user. ASP.NET's horrid Table Adapters are also guilty. Queries can be executed and one can be given an error message saying that a constraint somewhere is being violated. Thanks for that. Time to compare my data model against the database, because the developers are too lazy to provide even a row number, or example data. (For the record, I'd never use this data-access method by choice, it's just a project I have inherited!). Whenever I throw an exception from my C# or C++ code, I provide everything I have at hand to the user. The decision has been made to throw it, so the more information I can give, the better. Why did my function throw an exception? What was passed in, and what was expected? It takes me just a little longer to put something meaningful in the body of an exception message. Hell, it does nothing but help me whilst I develop, because I know my code throws things that are meaningful. One could argue that complicated exception messages should not be displayed to the user. Whilst I disagree with that, it is an argument that can easily be appeased by having a different level of verbosity depending on your build. Even then, the users of ASP.NET and SQL Server are not your typical users, and would prefer something full of verbosity and yummy information because they can track down their problems faster. Why to developers think it is okay, in this day and age, to provide the bare minimum amount of information when an error occurs? It's 2011 guys, come on.

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• Fusion Concepts: Fusion Database Schemas

  - by Vik Kumar

  You often read about FUSION and FUSION_RUNTIME users while dealing with Fusion Applications. There is one more called FUSION_DYNAMIC. Here are some details on the difference between these three and the purpose of each type of schema. FUSION: It can be considered as an Administrator of the Fusion Applications with all the corresponding rights and powers such as owning tables and objects, providing grants to FUSION_RUNTIME.  It is used for patching and has grants to many internal DBMS functions. FUSION_RUNTIME: Used to run the Applications.  Contains no DB objects. FUSION_DYNAMIC: This schema owns the objects that are created dynamically through ADM_DDL. ADM_DDL is a package that acts as a wrapper around the DDL statement. ADM_DDL support operations like truncate table, create index etc. As the above statements indicate that FUSION owns the tables and objects including FND tables so using FUSION to run applications is insecure. It would be possible to modify security policies and other key information in the base tables (like FND) to break the Fusion Applications security via SQL injection etc. Other possibilities would be to write a logon DB trigger and steal credentials etc. Thus, to make Fusion Applications secure FUSION_RUNTIME is granted privileges to execute DMLs only on APPS tables. Another benefit of having separate users is achieving Separation of Duties (SODs) at schema level which is required by auditors. Below are the roles and privileges assigned to FUSION, FUSION_RUNTIME and FUSION_DYNAMIC schema: FUSION It has the following privileges: Create SESSION Do all types of DDL owned by FUSION. Additionally, some specific priveleges on other schemas is also granted to FUSION. EXECUTE ON various EDN_PUBLISH_EVENT It has the following roles: CTXAPP for managing Oracle Text Objects AQ_SER_ROLE and AQ_ADMINISTRATOR_ROLE for managing Advanced Queues (AQ) FUSION_RUNTIME It has the following privileges: CREATE SESSION CHANGE NOTIFICATION EXECUTE ON various EDN_PUBLISH_EVENT It has the following roles: FUSION_APPS_READ_WRITE for performing DML (Select, Insert, Delete) on Fusion Apps tables FUSION_APPS_EXECUTE for performing execute on objects such as procedures, functions, packages etc. AQ_SER_ROLE and AQ_ADMINISTRATOR_ROLE for managing Advanced Queues (AQ) FUSION_DYNAMIC It has following privileges: CREATE SESSION, PROCEDURE, TABLE, SEQUENCE, SYNONYM, VIEW UNLIMITED TABLESPACE ANALYZE ANY CREATE MINING MODEL EXECUTE on specific procedure, function or package and SELECT on specific tables. This depends on the objects identified by product teams that ADM_DDL needs to have access  in order to perform dynamic DDL statements. There is one more role FUSION_APPS_READ_ONLY which is not attached to any user and has only SELECT privilege on all the Fusion objects. FUSION_RUNTIME does not have any synonyms defined to access objects owned by FUSION schema. A logon trigger is defined in FUSION_RUNTIME which sets the current schema to FUSION and eliminates the need of any synonyms.   What it means for developers? Fusion Application developers should be using FUSION_RUNTIME for testing and running Fusion Applications UI, BC and to connect to any SQL front end like SQL *PLUS, SQL Loader etc. For testing ADFbc using AM tester while using FUSION_RUNTIME you may hit the following error: oracle.jbo.JboException: JBO-29000: Unexpected exception caught: java.sql.SQLException, msg=invalid name pattern: FUSION.FND_TABLE_OF_VARCHAR2_255 The fix is to add the below JVM parameter in the Run/Debug client property in the Model project properties -Doracle.jdbc.createDescriptorUseCurrentSchemaForSchemaName=true More details are discussed in this forum thread for it.

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• How to make software development decisions based on facts

  - by Laila

  We love to hear stories about the many and varied ways our customers use the tools that we develop, but in our earnest search for stories and feedback, we'd rather forgotten that some of our keenest users are fellow RedGaters, in the same building. It was almost by chance that we discovered how the SQL Source Control team were using SmartAssembly. As it happens, there is a separate account (here on Simple-Talk) of how SmartAssembly was used to support the Early Access program; by providing answers to specific questions about how the SQL Source Control product was used. But what really got us all grinning was how valuable the SQL Source Control team found the reports that SmartAssembly was quickly and painlessly providing. So gather round, my friends, and I'll tell you the Tale Of The Framework Upgrade . <strange mirage effect to denote a flashback. A subtle background string of music starts playing in minor key> Kevin and his team were undecided. They weren't sure whether they could move their software product from .NET 2 to .NET 3.5 , let alone to .NET 4. You see, they were faced with having to guess what version of .NET was already installed on the average user's machine, which I'm sure you'll agree is no easy task. Upgrading their code to .NET 3.5 might put a barrier to people trying the tool, which was the last thing Kevin wanted: "what if our users have to download X, Y, and Z before being able to open the application?" he asked. That fear of users having to do half an hour of downloads (.followed by at least ten minutes of installation. followed by a five minute restart) meant that Kevin's team couldn't take advantage of WCF (Windows Communication Foundation). This made them sad, because WCF would have allowed them to write their code in a much simpler way, and in hours instead of days (as was the case with .NET 2). Oh sure, they had a gut feeling that this probably wasn't the case, 3.5 had been out for so many years, but they weren't sure. <background music switches to major key> SmartAssembly Feature Usage Reporting gave Kevin and his team exactly what they needed: hard data on their users' systems, both hardware and software. I was there, I saw it happen, and that's not the sort of thing a woman quickly forgets. I'll always remember his last words (before he went to lunch): "You get lots of free information by just checking a box in SmartAssembly" is what he said. For example, they could see how many CPU cores their customers were using, and found out that they should be making use of parallelism to take advantage of available cores. But crucially, (and this is the moral of my tale, dear reader), Kevin saw that 99% of SQL Source Control's users were on .NET 3.5 or above.   So he knew that they could make the switch and that is was safe to do so. With this reassurance, they could use WCF to not only make development easier, but to also give them a really nice way to do inter-process communication between the Source Control and the SQL Compare products. To have done that on .NET 2.0 was certainly possible <knowing chuckle>, but Microsoft have made it a lot easier with WCF. <strange mirage effect to denote end of flashback> So you see, with Feature Usage Reporting, they finally got the hard evidence they needed to safely make the switch to .NET 3.5, knowing it would not inconvenience their users. And that, my friends, is just the sort of thing we like to hear.

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• It’s the thought that counts…

  - by Tony Davis

  I recently finished editing a book called Tribal SQL, and it was a fantastic experience. It’s a community-sourced book written by first-timers. Fifteen previously unpublished authors contributed one chapter each, with the seemingly simple remit to write about “what makes them passionate about working with SQL Server, something that all SQL Server DBAs and developers really need to know”. Sure, some of the writing skills were a bit rusty as one would expect from busy people, but the ideas and energy were sheer nectar. Any seasoned editor can deal easily with the problem of fixing the output of untrained writers. We can handle with the occasional technical error too, which is why we have technical reviewers. The editor’s real job is to hone the clarity and flow of ideas, making the author’s knowledge and experience accessible to as many others as possible. What the writer needs to bring, on the other hand, is enthusiasm, attention to detail, common sense, and a sense of the person behind the writing. If any of these are missing, no editor can fix it. We can see these essential characteristics in many of the more seasoned and widely-published writers about SQL. To illustrate what I mean by enthusiasm, or passion, take a look at the work of Laerte Junior or Fabiano Amorim. Both authors have English as a second language, but their energy, enthusiasm, sheer immersion in a technology and thirst to know more, drives them, with a little editorial help, to produce articles of far more practical value than one can find in the “manuals”. There’s the attention to detail of the likes of Jonathan Kehayias, or Paul Randal. Read their work and one begins to understand the knowledge coupled with incredible rigor, the willingness to bend and test every piece of advice offered to make sure it’s correct, that marks out the very best technical writing. There’s the common sense of someone like Louis Davidson. All writers, including Louis, like to stretch the grey matter of their readers, but some of the most valuable writing is that which takes a complicated idea, or distils years of experience, and expresses it in a way that sounds like simple common sense. There’s personality and humor. Contrary to what you may have been told, they can and do mix well with technical writing, as long as they don’t become a distraction. Read someone like Rodney Landrum, or Phil Factor, for numerous examples of articles that teach hard technical lessons but also make you smile at least twice along the way. Writing well is not easy and it takes a certain bravery to expose your ideas and knowledge for dissection by others, but it doesn’t mean that writing should be the preserve only of those trained in the art, or best left to the MVPs. I believe that Tribal SQL is testament to the fact that if you have passion for what you do, and really know your topic then, with a little editorial help, you can write, and people will learn from what you have to say. You can read a sample chapter, by Mark Rasmussen, in this issue of Simple-Talk and I hope you’ll consider checking out the book (if you needed any further encouragement, it’s also for a good cause, Computers4Africa). Cheers, Tony  

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• BIP BIServer Query Debug

  - by Tim Dexter

  With some help from Bryan, I have uncovered a way of being able to debug or at least log what BIServer is doing when BIP sends it a query request. This is not for those of you querying the database directly but if you are using the BIServer and its datamodel to fetch data for a BIP report. If you have written or used the query builder against BIServer and when you run the report it chokes with a cryptic message, that you have no clue about, read on. When BIP runs a piece of BIServer logical SQL to fetch data. It does not appear to validate it, it just passes it through, so what is BIServer doing on its end? As you may know, you are not writing regular physical sql its actually logical sql e.g. select Jobs."Job Title" as "Job Title", Employees."Last Name" as "Last Name", Employees.Salary as Salary, Locations."Department Name" as "Department Name", Locations."Country Name" as "Country Name", Locations."Region Name" as "Region Name" from HR.Locations Locations, HR.Employees Employees, HR.Jobs Jobs The tables might not even be a physical tables, we don't care, that's what the BIServer and its model are for. You have put all the effort into building the model, just go get me the data from where ever it might be. The BIServer takes the logical sql and uses its vast brain to work out what the physical SQL is, executes it and passes the result back to BIP. select distinct T32556.JOB_TITLE as c1, T32543.LAST_NAME as c2, T32543.SALARY as c3, T32537.DEPARTMENT_NAME as c4, T32532.COUNTRY_NAME as c5, T32577.REGION_NAME as c6 from JOBS T32556, REGIONS T32577, COUNTRIES T32532, LOCATIONS T32569, DEPARTMENTS T32537, EMPLOYEES T32543 where ( T32532.COUNTRY_ID = T32569.COUNTRY_ID and T32532.REGION_ID = T32577.REGION_ID and T32537.DEPARTMENT_ID = T32543.DEPARTMENT_ID and T32537.LOCATION_ID = T32569.LOCATION_ID and T32543.JOB_ID = T32556.JOB_ID ) Not a very tough example I know but you get the idea. How do I know what the BIServer is up to? How can I find out what the issue might be if BIServer chokes on my query? There are a couple of steps: In the Administrator tool you need to set the logging level for the Administrator user to something greater than the default '0'. '7' is going to give you the max. Just remember to take it back down after you have finished the debug. I needed to bounce my BIServer service Now here's the secret sauce. Prefix the following to your BIP query set variable LOGLEVEL = 7; Set the log level to that you have in the admin tool Now run your BIP report. With the prefix in place; BIServer will write to the NQQuery.log file. This is located in the ./OracleBI/server/Log directory. In there you are going to find the complete process the BIServer has gone through to try and get the data back for you A quick note, if the BIServer can, its going to hit that great BIEE cache to get your data and you may not see the full log. IF this is the case. Get inot hte Administration page (via the browser login) and clear out your BIP report cursor. Then re-run. This will hopefully help out if you are trying to debug that annoying BIP report that will not run or is getting some strange data. Don't forget to turn that logging level back down once you are done. This will avoid the DBA screaming at you for sucking up all the disk space on the system.

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• Normalisation and 'Anima notitia copia' (Soul of the Database)

  - by Phil Factor

  (A Guest Editorial for Simple-Talk) The other day, I was staring  at the sys.syslanguages  table in SQL Server with slightly-raised eyebrows . I’d just been reading Chris Date’s  interesting book ‘SQL and Relational Theory’. He’d made the point that you’re not necessarily doing relational database operations by using a SQL Database product.  The same general point was recently made by Dino Esposito about ASP.NET MVC.  The use of ASP.NET MVC doesn’t guarantee you a good application design: It merely makes it possible to test it. The way I’d describe the sentiment in both cases is ‘you can hit someone over the head with a frying-pan but you can’t call it cooking’. SQL enables you to create relational databases. However,  even if it smells bad, it is no crime to do hideously un-relational things with a SQL Database just so long as it’s necessary and you can tell the difference; not only that but also only if you’re aware of the risks and implications. Naturally, I’ve never knowingly created a database that Codd would have frowned at, but around the edges are interfaces and data feeds I’ve written  that have caused hissy fits amongst the Normalisation fundamentalists. Part of the problem for those who agonise about such things  is the misinterpretation of Atomicity.  An atomic value is one for which, in the strange virtual universe you are creating in your database, you don’t have any interest in any of its component parts.  If you aren’t interested in the electrons, neutrinos,  muons,  or  taus, then  an atom is ..er.. atomic. In the same way, if you are passed a JSON string or XML, and required to store it in a database, then all you need to do is to ask yourself, in your role as Anima notitia copia (Soul of the database) ‘have I any interest in the contents of this item of information?’.  If the answer is ‘No!’, or ‘nequequam! Then it is an atomic value, however complex it may be.  After all, you would never have the urge to store the pixels of images individually, under the misguided idea that these are the atomic values would you?  I would, of course,  ask the ‘Anima notitia copia’ rather than the application developers, since there may be more than one application, and the applications developers may be designing the application in the absence of full domain knowledge, (‘or by the seat of the pants’ as the technical term used to be). If, on the other hand, the answer is ‘sure, and we want to index the XML column’, then we may be in for some heavy XML-shredding sessions to get to store the ‘atomic’ values and ensure future harmony as the application develops. I went back to looking at the sys.syslanguages table. It has a months column with the months in a delimited list January,February,March,April,May,June,July,August,September,October,November,December This is an ordered list. Wicked? I seem to remember that this value, like shortmonths and days, is treated as a ‘thing’. It is merely passed off to an external  C++ routine in order to format a date in a particular language, and never accessed directly within the database. As far as the database is concerned, it is an atomic value.  There is more to normalisation than meets the eye.

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• What Counts for a DBA: Skill

  - by drsql

  “Practice makes perfect:” right? Well, not exactly. The reality of it all is that this saying is an untrustworthy aphorism. I discovered this in my “younger” days when I was a passionate tennis player, practicing and playing 20+ hours a week. No matter what my passion level was, without some serious coaching (and perhaps a change in dietary habits), my skill level was never going to rise to a level where I could make any money at the sport that involved something other than selling tennis balls at a sporting goods store. My game may have improved with all that practice but I had too many bad practices to overcome. Practice by itself merely reinforces what we know and what we can figure out naturally. The truth is actually closer to the expression used by Vince Lombardi: “Perfect practice makes perfect.” So how do you get to become skilled as a DBA if practice alone isn’t sufficient? Hit the Internet and start searching for SQL training and you can find 100 different sites. There are also hundreds of blogs, magazines, books, conferences both onsite and virtual. But then how do you know who is good? Unfortunately often the worst guide can be to find out the experience level of the writer. Some of the best DBAs are frighteningly young, and some got their start back when databases were stored on stacks of paper with little holes in it. As a programmer, is it really so hard to understand normalization? Set based theory? Query optimization? Indexing and performance tuning? The biggest barrier often is previous knowledge, particularly programming skills cultivated before you get started with SQL. In the world of technology, it is pretty rare that a fresh programmer will gravitate to database programming. Database programming is very unsexy work, because without a UI all you have are a bunch of text strings that you could never impress anyone with. Newbies spend most of their time building UIs or apps with procedural code in C# or VB scoring obvious interesting wins. Making matters worse is that SQL programming requires mastery of a much different toolset than most any mainstream programming skill. Instead of controlling everything yourself, most of the really difficult work is done by the internals of the engine (written by other non-relational programmers…we just can’t get away from them.) So is there a golden road to achieving a high skill level? Sadly, with tennis, I am pretty sure I’ll never discover it. However, with programming it seems to boil down to practice in applying the appropriate techniques for whatever type of programming you are doing. Can a C# programmer build a great database? As long as they don’t treat SQL like C#, absolutely. Same goes for a DBA writing C# code. None of this stuff is rocket science, as long as you learn to understand that different types of programming require different skill sets and you as a programmer must recognize the difference between one of the procedural languages and SQL and treat them differently. Skill comes from practicing doing things the right way and making “right” a habit.

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• RuntimeError: maximum recursion depth exceeded while calling a Python object

  - by Bilal Basharat

  this error arises when i try to run the following test case which is written in models.py of my django app named 'administration' : from django.test import Client, TestCase from django.core import mail class ClientTest( TestCase ): fixtures = [ 'testdata.json' ] def test_get_register( self ): response = self.client.get( '/accounts/register/', {} ) self.assertEqual( response.status_code, 200 ) the error arises at this line specifically: response = self.client.get( '/accounts/register/', {} ) my django version is 1.2.1 and python 2.6 and satchmo version is 0.9.2-pre hg-unknown. I code in windows platform(xp sp2). The command to run test case is: python manage.py test administration the complete error log is as follow: site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 101, in by_host site = Site.objects.get(domain=host) File "C:\django\django\db\models\manager.py", line 132, in get return self.get_query_set().get(*args, **kwargs) File "C:\django\django\db\models\query.py", line 336, in get num = len(clone) File "C:\django\django\db\models\query.py", line 81, in __len__ self._result_cache = list(self.iterator()) File "C:\django\django\db\models\query.py", line 269, in iterator for row in compiler.results_iter(): File "C:\django\django\db\models\sql\compiler.py", line 672, in results_iter for rows in self.execute_sql(MULTI): File "C:\django\django\db\models\sql\compiler.py", line 717, in execute_sql sql, params = self.as_sql() File "C:\django\django\db\models\sql\compiler.py", line 65, in as_sql where, w_params = self.query.where.as_sql(qn=qn, connection=self.connection) File "C:\django\django\db\models\sql\where.py", line 91, in as_sql sql, params = child.as_sql(qn=qn, connection=connection) File "C:\django\django\db\models\sql\where.py", line 94, in as_sql sql, params = self.make_atom(child, qn, connection) File "C:\django\django\db\models\sql\where.py", line 141, in make_atom lvalue, params = lvalue.process(lookup_type, params_or_value, connection) File "C:\django\django\db\models\sql\where.py", line 312, in process connection=connection, prepared=True) File "C:\django\django\db\models\fields\subclassing.py", line 53, in inner return func(*args, **kwargs) File "C:\django\django\db\models\fields\subclassing.py", line 53, in inner return func(*args, **kwargs) File "C:\django\django\db\models\fields\__init__.py", line 323, in get_db_prep _lookup return [self.get_db_prep_value(value, connection=connection, prepared=prepar ed)] File "C:\django\django\db\models\fields\subclassing.py", line 53, in inner return func(*args, **kwargs) File "C:\django\django\db\models\fields\subclassing.py", line 53, in inner return func(*args, **kwargs) RuntimeError: maximum recursion depth exceeded while calling a Python object ---------------------------------------------------------------------- Ran 7 tests in 48.453s FAILED (errors=1) Destroying test database 'default'...

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• A storage mechanism has already been configured for this application

  - by Khalil Dahab

  I am getting this error whenever my S#arp Architecture attempts to start and this is an problem with SQL Server (for example: SQL Server is not runing), after I start SQL Server and hit refresh, I get this error: A storage mechanism has already been configured for this application

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• SQLiteQueryBuilder.buildQuery not using selectArgs?

  - by user297468

  Alright, I'm trying to query a sqlite database. I was trying to be good and use the query method of SQLiteDatabase and pass in the values in the selectArgs parameter to ensure everything got properly escaped, but it wouldn't work. I never got any rows returned (no errors, either). I started getting curious about the SQL that this generated so I did some more poking around and found SQLiteQueryBuilder (and apparently Stack Overflow doesn't handle links with parentheses in them well, so I can't link to the anchor for the buildQuery method), which I assume uses the same logic to generate the SQL statement. I did this: SQLiteQueryBuilder builder = new SQLiteQueryBuilder(); builder.setTables(BarcodeDb.Barcodes.TABLE_NAME); String sql = builder.buildQuery(new String[] { BarcodeDb.Barcodes.ID, BarcodeDb.Barcodes.TIMESTAMP, BarcodeDb.Barcodes.TYPE, BarcodeDb.Barcodes.VALUE }, "? = '?' AND ? = '?'", new String[] { BarcodeDb.Barcodes.VALUE, barcode.getValue(), BarcodeDb.Barcodes.TYPE, barcode.getType()}, null, null, null, null); Log.d(tag, "Query is: " + sql); The SQL that gets logged at this point is: SELECT _id, timestamp, type, value FROM barcodes WHERE (? = '?' AND ? = '?') However, here's what the documentation for SQLiteQueryBuilder.buildQuery says about the selectAgs parameter: You may include ?s in selection, which will be replaced by the values from selectionArgs, in order that they appear in the selection. ...but it isn't working. Any ideas?

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• Oracle - Update statement with inner join

  - by user169743

  I have a query which works fine in MySQL, I'm trying to get it working on oracle but get the following error SQL Error: ORA-00933: SQL command not properly ended 00933. 00000 - "SQL command not properly ended" The query is: UPDATE table1 INNER JOIN table2 ON table1.value = table2.DESC SET table1.value = table2.CODE WHERE table1.UPDATETYPE='blah'; I'd be extremely grateful for any help.

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• A list of Entity Framework providers for various databases

  - by Robert Koritnik

  Which providers are there and your experience using them I would like to know about all possible native .net Framework Entity Framework providers that are out there as well as their limitations compared to the default Linq2Entities (from MS for MS SQL). If there are more for the same database even better. Tell me and I'll be updating this post with this list. Feel free to add additional providers directly into this post or provide an answer and others (including me) will add it to the list. Entity Framework 1 Microsoft SQL Server Standard/Enterprise/Express Linq 2 Entities - Microsoft SQL Server connector DataDirect ADO.NET Data Providers Microsoft SQL Server CE (Compact Edition) Any provider? MySQL MySQL Connector (since version 6.0) - I've read about issues when using Skip(), Take() and Sort() in the same expression tree - everyone welcome to input their experience/knowledge regarding this. (NOTE: MySQL Connector/NET Visual Studio Integration is not supported in the Express Editions of Visual Studio, meaning you won't be able to view MySQL databases in the Database explorer window or add a MySQL data source via Visual Studio wizard dialog boxes. Some users may find that this limits their ability to use Entity Framework and MySQL within Visual Studio Express). Devart dotConnect for MySQL - similar issues to MySql's connector as I've read and both try to blame MS for it [these issues are supposed to be solved] SQLite Devart dotConnect for SQLite System.Data.SQLite PostgreSQL Devart dotConnect for PostgreSQL Npgsql Oracle Devart dotConnect for Oracle Sample Entity Framework Provider for Oracle - community effort project DataDirect ADO.NET Data Providers DB2 IBM Data Server Provider has EF support. Here are some limitations. DataDirect ADO.NET Data Providers Sybase Sybase iAnywhere DataDirect ADO.NET Data Providers Informix IBM Data Server Provider supports Informix Firebird ADO.NET Data Provider with EF support Provider Wrappers Tracing and Caching Providers for EF Entity Framework 4 (beta) Microsoft SQL Server Microsoft's Linq to Entities 4 - shipped with .net 4.0 and Visual Studio 2010; so far the only provider for EF4 MySQL Devart dotConnect for MySQL SQLite Devart dotConnect for SQLite PostgreSQL Devart dotConnect for PostgreSQL Oracle Devart dotConnect for Oracle

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• CodePlex Daily Summary for Thursday, May 27, 2010

  CodePlex Daily Summary for Thursday, May 27, 2010New ProjectsBinding Navigator: Clone of WinForms BindingNavigator that is able to work with any type of DataSource. For full functionality it requires the DataSource to implement...DEWD: DEWD is an Umbraco 4.0 extension used to edit sequential data such as rows in a SQL server database table. It's meant to allow developers to quickl...Eletronic Invoice Extensions: A simple DLL to use against XSD and validate a XML.EssionCalendar: EssionCal EssionCalExpression Encoder Batch Processor: Importing your videotapes into Windows is easy with the built-in utilities, but if your importer does not encode to your desired format, you need t...Feedback Form: Feedback application makes it easier for attendees who attend an seminar/event and event organizers. Organizers of the event will no longer need to...Find in Start Menu: Find in Start MenuIE8 Web Slices Pack: IE8 Web Slices Pack is a package of 5 types of web slices ready to be customized via a mini-CMS for your web site or for your custom IE8 installer....KafTK: Iskakov AzamatMicrosoft Dynamics NAV text export splitter: Utility for splitting Microsoft Dynamics NAV object exports (in text format) into files that each contain a single object. MultiPoint Vote: Voting is more innovative and catchy through this MultiPoint application. Using MultiPoint SDK 1.5 and Visual C#, this prototype emphasizes the cap...NebDotNet: NebDotNetnsim: Some simulation issues.OpenLight Group Common Lib: This project is a set of classes commonly used across OpenLight Group projects.pstsdk.net: .NET port of PST File Format SDK: pstsdk.net makes it easier for .NET developers to access the PST file format. This is a direct C# port of the PST File Format SDK project which is ...RavenMVC: A NoSQL Demo App using RavenDB and ASP.NET MVC 2.Remics: Remics is a toolkit for reverse engineering tools. Open source (MIT license). The goal of Remics is enabling developers (or researchers) quickly...RIA Services to Legacy DAL Integration Library: RIA Services to Legacy DAL Integration LibrarySharePoint List Adapters for SSIS: SSIS source and destination components to access SharePoint lists using basic authenticationSql Query Modelling Language: This project library creates simple Sql queries.Thumb nail creator and image resizer: a user control to create thubnails and resize images for displayTK: study projectViperWorks Ignition: Ignition is application framework for WinForms and WPF business applications. Built in webservice generation, reporting and rapid application devel...XNA Image Reflector: XNA Image Reflector allows you to add Web 2.0-like reflections to images in a few clicksXNArkanoid: XNArkanoid is a Windows Phone 7 remake of the classic Taito´s Arkanoid. It´s developed in C#, using XNA Framework v4.0.New ReleasesAcies: Acies - Alpha Build 0.0.5: First alpha release. Requires Microsoft XNA Framework Redistributable 3.1 (http://www.microsoft.com/downloads/details.aspx?FamilyID=53867a2a-e249...Ajax Toolkit for ASP.NET MVC: Ajax Toolkit for ASP.NET MVC v20100527: change array datasource to json datasource allow lowercaseAttribute Builder: Attribute Builder 1.0: Attribute Builder 1.0Support for parameter-less constructors, constructors with parameters and object initialization with field and property assign...Binding Navigator: TTBindingNavigator preview: First binary release. Only control without samples.Bojinx: Bojinx Core V4.5.15: Bugs fixed: Clean up in the event handler Added more disposal features to better clean up contexts on unload. Optimized command processing fur...CBM-Command: Version 1.0 - 2010-05-26: Release Notes - 2010-05-26 - Version 1.0New Features None Changes Fixed bug where you could move to an unopened panel Fixed bug where you could ...Community Forums NNTP bridge: Community Forums NNTP Bridge V03: This is the second release of the Community Forums NNTP Bridge to access the social and anwsers MS forums with a single, open sourcen NNTP Bridge. ...Community Forums NNTP bridge: Community Forums NNTP Bridge V04: This is the second release of the Community Forums NNTP Bridge to access the social and anwsers MS forums with a single, open sourcen NNTP Bridge. ...Community Forums NNTP bridge: Community Forums NNTP Bridge V05: This is the second release of the Community Forums NNTP Bridge to access the social and anwsers MS forums with a single, open sourcen NNTP Bridge. ...Community Forums NNTP bridge: Community Forums NNTP Bridge V06: This is the second release of the Community Forums NNTP Bridge to access the social and anwsers MS forums with a single, open sourcen NNTP Bridge. ...Community Forums NNTP bridge: Community Forums NNTP Bridge V07: Release of the Community Forums NNTP Bridge to access the social and anwsers MS forums with a single, open sourcen NNTP Bridge. This release solves...Community Forums NNTP bridge: Community Forums NNTP Bridge V08: Release of the Community Forums NNTP Bridge to access the social and anwsers MS forums with a single, open source NNTP bridge. This release solves ...Dot Game: Dot Game Network version: Now, you can play over network.EpsiRisk: EPSI RISK V1: First Stable Version of EpsiRISK ! Enjoy !Event Scavenger: Viewer 3.3.0: Added grouping functionality to Viewer. Group expanding/collapsing only supported under Windows Vista/7 and onwards. Viewer version set to 3.3.0.FAST for Sharepoint MOSS 2010 Query Tool: Version 1.0: Full Release Added sorting Added custom trim duplicates Added UI improvements Added ignore certificate errorsFoursquare for Windows Phone 7: Foursquare 2010.05.26.01: Foursquare 2010.05.26.01 Updates: Corrected issue with isPrivate, sendToTwitter, and sendToFacebookHobbyBrew Mobile: Beta 3: ATTENZIONE notifica nuove versioni via email disponibile (leggi in fondo)! Supporto alla rotazione dello schermo: Malti e Luppoli si affiancano or...IE8 Web Slices Pack: IE8 Web Slices Pack v2.0: This release of the Web Slices Pack supports 5 different Web Slices and a mini CMS to administer the info in the Web Slices.manx: manx data 1.0: Initial dump of data. This is a raw SQL dump script that deletes all existing data and inserts the initial dataset as received from Paul Williams....Microsoft Web Protection Library: WPL May CTP: This preview of the Web Protection Library includes AntiXSS - an updated Anti-Cross Site Scripting Library removes some bugs and is now usable in ...MultiPoint Vote: MultiPoint Vote v.1: MultiPoint Vote v1 Features This accepts user inputs: number of participants, poll/survey title and the list of options A text file containing th...NLog - Advanced .NET Logging: Nightly Build 2010.05.26.001: Changes since the last build:2010-05-25 19:21:49 Jarek Kowalski Reordered parameters of AsynchronousAction<T> 2010-05-25 19:16:02 Jarek Kowalski N...NodeXL: Network Overview, Discovery and Exploration for Excel: NodeXL Class Libraries, version 1.0.1.124: The NodeXL class libraries can be used to display network graphs in .NET applications. To include a NodeXL network graph in a WPF desktop or Windo...NodeXL: Network Overview, Discovery and Exploration for Excel: NodeXL Excel 2007 Template, version 1.0.1.124: The NodeXL Excel 2007 template displays a network graph using edge and vertex lists stored in an Excel 2007 workbook. What's NewThis is a minor re...OpenExpressApp let business people build application: OpenExpressApp for .Net4: 从.Net3.5 SP1 升级到.Net4 ,升级主要内容: 1. 解决了一些内存泄露问题 2. 修改了一些bug 3. 进行了部分代码重构 4. 使用MEF替代了PrismRavenMVC: RavenMVC 0.1: A NoSQL demo app in ASP.NET MVC using RavenDB.SharePoint List Adapters for SSIS: Initial Release: Contains the raw assemblies necessary to use the SharePoint list adapters with basic authentication. See the read me file for details on using in ...Sql Query Modelling Language: Sql Qml V1: This is first versionThumb nail creator and image resizer: ThumbnailCreator 1.0: This is the very first release I built it for my self so it a bit rough but i thought others might fint it usefulluptime.exe: uptime.exe v1.1: Changed the calculation of the uptime. It's now based on the LastbootUpTime value obtained from WMI.VCC: Latest build, v2.1.30526.0: Automatic drop of latest buildViperWorks Ignition: Test: TestXmlCodeEditor: Release 0.91 Alpha: Release 0.91 AlphaXNA Image Reflector: XNA Image Reflector v 1.1: This release has been compiled with XNA Game Studio 3.1, so you will need to download the XNA Runtime 3.1 in order to run it.Xna.Extend: Xna Extend (Ver 0.0.1 beta): This is the betas, betas, beta, test version (Version 0.0.1 beta). It includes only the input and audio components. If you experience any errors, o...XNArkanoid: XNArkanoid v 0.2b: XNArkanoid v 0.2. Initial beta releaseMost Popular ProjectsRawrWBFS ManagerAJAX Control ToolkitMicrosoft SQL Server Product Samples: DatabaseSilverlight ToolkitWindows Presentation Foundation (WPF)patterns & practices – Enterprise LibraryMicrosoft SQL Server Community & SamplesPHPExcelASP.NETMost Active ProjectsAStar.netpatterns & practices – Enterprise Librarypatterns & practices: Windows Azure Security GuidanceSqlServerExtensionsMono.AddinsBlogEngine.NETCustomer Portal Accelerator for Microsoft Dynamics CRMRawrCodeReviewGMap.NET - Great Maps for Windows Forms & Presentation

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• TF255440 error on configuring TFS 2010 upgrade from RC to RTM

  - by PaulB

  I'm running the tfs upgrade wizard (from RC to RTM). On reaching the Readiness Checks I'm getting an error on the 'Configuration Database' : [ Configuration Database ] TF255440: The following account has a SQL Server login, but the login was denied access: DOMAIN\User. The server selected to host the databases for Team Foundation Server is: MYSERVER. The SQL Server login associated with the user account must be granted access to the SQL Server instance on that server. I've tried changing user mappings and roles but so far no joy.

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• CodePlex Daily Summary for Thursday, October 27, 2011

  CodePlex Daily Summary for Thursday, October 27, 2011Popular ReleasesAcDown????? - Anime&Comic Downloader: AcDown????? v3.6: ?? ● AcDown??????????、??????，??????????????????????，???????Acfun、Bilibili、???、???、???、Tucao.cc、SF???、?????80????，???????????、?????????。 ● AcDown???????????????????????????，???，???????????????????。 ● AcDown???????C#??，????.NET Framework 2.0??。?????"Acfun?????"。 ????32??64? Windows XP/Vista/7 ????????????? ??：????????Windows XP???,?????????.NET Framework 2.0???(x86)?.NET Framework 2.0???(x64)，?????"?????????"??? ??????????????，??????????： ??"AcDown?????"????????? ?? v3.6?? ??“????”...Facebook C# SDK: 5.3.1: This is a BETA release which adds new features and bug fixes to v5.2.1. removed dependency from Code Contracts enabled Task Parallel Support in .NET 4.0+ added support for early preview for .NET 4.5 added additional method overloads for .NET 4.5 to support IProgress<T> for upload progress added new CS-WinForms-AsyncAwait.sln sample demonstrating the use of async/await, upload progress report using IProgress<T> and cancellation support Query/QueryAsync methods uses graph api instead...SQL Backup Helper: SQL Backup Helper v1.0: Version 1.0 Changes Description added to settings table Automatic LOG files truncation added to BACKUP stored procedure Only database in status ONLINE will be backed upFlowton: Release 0.2: This release is the first official release of Flowton along with Source. Printpreview/Print is enabled with minor bug fixes from 0.1 alpha release locally.MySemanticSearch Sample: MySemanticSearch Installer (CTP3): Note: This release of the MySemanticSearch Sample works with SQL Server 2012 CTP3. Installation InstructionsDownload this self-extracting archive to your computer Execute the self-extracting archive Accept the licensing agreement Choose a target directory on your computer and extract the files Open Windows PowerShell command prompt with elevated priveleges Execute the following command: Set-ExecutionPolicy Unrestricted Close the Windows PowerShell command prompt Run C:\MySema...Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.33: Add JSParser.ParseExpression method to parse JavaScript expressions rather than source-elements. Add -strict switch (CodeSettings.StrictMode) to force input code to ECMA5 Strict-mode (extra error-checking, "use strict" at top). Fixed bug when MinifyCode setting was set to false but RemoveUnneededCode was left it's default value of true.Path Copy Copy: 8.0: New version that mostly adds lots of requested features: 11340 11339 11338 11337 This version also features a more elaborate Settings UI that has several tabs. I tried to add some notes to better explain the use and purpose of the various options. The Path Copy Copy documentation is also on the way, both to explain how to develop custom plugins and to explain how to pre-configure options if you're a network admin. Stay tuned.MVC Controls Toolkit: Mvc Controls Toolkit 1.5.0: Added: The new Client Blocks feaure of Views A new "move" js method for the TreeViews The NewHtmlCreated js event to the DataGrid Improved the ChoiceList structure that now allows also the selection list of a dropdown to be chosen with a lambda expression Fixed: Issue with partial thrust Client handling of conditional attributes Bug in TreeView node moves that sometimes were not reflected on the server An issue in the Mvc3 Nuget package that wasn't able to uninstall properly ...Free SharePoint Master Pages: Buried Alive (Halloween) Theme: Release Notes *Created for Halloween, you will find theme file, custom css file and images. *Created by Al Roome @AlstarRoome Features: Custom styling for web part Custom background *Screenshot https://s3.amazonaws.com/kkhipple/post/sharepoint-showcase-halloween.pngDevForce Application Framework: DevForce AF 2.0.3 RTW: PrerequisitesWPF 4.0 Silverlight 4.0 DevForce 2010 6.1.3.1 Download ContentsDebug and Release Assemblies API Documentation Source code License.txt Requirements.txt Release HighlightsNew: EventAggregator event forwarding New: EntityManagerInterceptor<T> to intercept EntityManger events New: IHarnessAware to allow for ViewModel setup when executed inside of the Development Harness New: Improved design time stability New: Support for add-in development New: CoroutineFns.To...NicAudio: NicAudio 2.0.5: Minor change to accept special DTS stereo modes (LtRt, AB,...)Windows Azure Toolkit for Windows Phone: Windows Azure Toolkit for Windows Phone v1.3.1: Upgraded Windows Azure projects to Windows Azure Tools for Microsoft Visual Studio 2010 1.5 – September 2011 Upgraded the tools tools to support the Windows Phone Developer Tools RTW Update SQL Azure only scenarios to use ASP.NET Universal Providers (through the System.Web.Providers v1.0.1 NuGet package) Changed Shared Access Signature service interface to support more operations Refactored Blobs API to have a similar interface and usage to that provided by the Windows Azure SDK Stor...xUnit.net Contrib: xunitcontrib-resharper 0.4.4 (dotCover): xunitcontrib release 0.4.4 (ReSharper runner) This release provides a test runner plugin for Resharper 6.0 RTM, targetting all versions of xUnit.net. (See the xUnit.net project to download xUnit.net itself.) This release addresses the following issues:Support for dotCover code coverage 4132 Note that this build work against ALL VERSIONS of xunit. The files are compiled against xunit.dll 1.8 - DO NOT REPLACE THIS FILE. Thanks to xunit's version independent runner system, this package can r...BookShop: BookShop: BookShop WP7 clientRibbon Editor for Microsoft Dynamics CRM 2011: Ribbon Editor (0.1.2122.266): Added CodePlex and PayPal links New icon Bug fix: can't connect to an IFD deployment when the discovery service url has been customizedSiteMap Editor for Microsoft Dynamics CRM 2011: SiteMap Editor (1.0.921.340): Added CodePlex and PayPal links New iconDotNet.Framework.Common: DotNet.Framework.Common 4.0: ??????????，????????????XML Explorer: XML Explorer 4.0.5: Changes in 4.0.5: Added 'Copy Attribute XPath to Address Bar' feature. Added methods for decoding node text and value from Base64 encoded strings, and copying them to the clipboard. Added 'ChildNodeDefinitions' to the options, which allows for easier navigation of parent-child and ID-IDREF relationships. Discovery happens on-demand, as nodes are expanded and child nodes are added. Nodes can now have 'virtual' child nodes, defined by an xpath to select an identifier (usually relative to ...CODE Framework: 4.0.11021.0: This build adds a lot of our WPF components, including our MVVC and MVC components as well as a "Metro" and "Battleship" style.WiX Toolset: WiX v3.6 Beta: First beta release of WiX v3.6. The primary focus is on Burn but there are also many small bug fixes to the core toolset. For more information see: http://robmensching.com/blog/posts/2011/10/24/WiX-v3.6-Beta-releasedNew Projects5by5by4 Tic Tac Toe Project: 5by5by4 Tic Tac Toe project for CS 3420.ASP.Net Membership provider for MongoDb: A role and membership provider for ASP.Net with MongoDb as the database. Makes use of the Norm Linq provider for MongoDb.Bazookabird TFS Dashboard: Just a simple TFS dashboard. Show build results, tfs queries of your choice and display availability of build machines. Only a feature-lacking proof of concept yet, will hopefully be useful in the end. BestWebApp: Web service and web application.Code Made Simple: A group of projects to make coding life simple.DefenseXna: ??xna??Digibib.NET: Digibib.NET ist eine Portierung der Lesesoftware Digibux für die Digitale Bibliothek der Directmedia Publishing.FaceComparerDistributed: project of face compare distributed versionFMSSolution: FMSISO Analyzer: ISO Analyzer is a tool that makes it easier to analyze ISO 8583 financial transactions and also provides a platform to create a host simulator, capable of receiving requests and sending back the responses. It’s a WinForms application and it’s developed using C#.ITU Project: ITU Projekt - Víc než len klávesové skratky (navigace mezi bežicími aplikacemi)Maintenance Province Data: Help people find your project. Write a concise, reader-focused summary. Example: <project name> makes it easier for <target user group> to <activity>. You'll no longer have to <activity>. It's developed in <programming language>.m?ng chia s? công vi?c: m?ng chia s? công vi?cMetroTask: MetroTask, An example Metro based application using C#MyHomeFinance: Helps to add and keep a record of financeMySemanticSearch Sample: MySemanticSearch is a sample content management application that demonstrates semantic search capabilities introduced in SQL Server 2012. MySemanticSearch allows you to visualize tag clouds for content stored in FileTables and find similar content using semantic search.NetBlocks: This project is an implementation of the Unit-of-Work and Repository patterns using Entity Framework 4.1 and Unity. The project also includes code that can be used to initialize an application’s run-time environment from a set of components. The project includes example components for typed configuration settings, caching and a factory component based on Unity. Also included is an example of how to represent a database command with a C# class that transforms the results to typed objects.Online shopping website in ASP.NET- Open Source Project: asp.net,C#,shopping cart,college project,visual studio 2010,visual web developer 2010Pak Master: Pak Explorer for the fourth coming four.Pizza Service: A mvc3 project which aims to host both a backend webservice and a frontend page for ordering pizza and managing orders, customers and provide a drivermapScadaEveryWhere: ScadaEveryWhereSilverTwitterSearch: SilverTwitterSearch is a Siliverlight library for the Twitter Search API.Snst Salix: Salix is codename for custom solution of time management and task assignment software.SolutionManagementKit: SolutionManagementKit This product will try to combine several monitoring / support tools available right now. the primary focus will be on (T) SQL / MDX parsing for SQL 2008 R2 SSAS 2008 R2 as well as cube maintance Development in C# / VB .NETTarget: Blank Orchard Module: If enabled, outgoing links open in new window (just like with the deprecated target="_blank" attribute)WPPersonality: Psychological tests for windows phoneXrmLibrary: A base library to be used for rapid integration with one or more Microsoft Dynamics CRM 2011 environments. The XrmLibrary contains thread-safe singleton implementations of both the CRM IOrganizationService (1 or many instances) and a tracer/logger that utilizes Apache's log4net.

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• Lost connection to MySQL server during query

  - by Otavio

  I have a huge table and I need to process all rows in it. I'm always getting this Lost connection message and I'm not able to reconnect and restore the cursor to the last position it was. This is basically the code I have here: # import MySQLdb class DB: conn = None def connect(self): self.conn = MySQLdb.connect('hostname', 'user', '*****', 'some_table', cursorclass=MySQLdb.cursors.SSCursor) def query(self, sql): try: cursor = self.conn.cursor() cursor.execute(sql) except (AttributeError, MySQLdb.OperationalError): self.connect() cursor = self.conn.cursor() cursor.execute(sql) return cursor # # db = DB() sql = "SELECT bla FROM foo" data = db.query(sql) for row in data: do_something(row) # But I'm always getting this: # Traceback (most recent call last): File "teste.py", line 124, in <module> run() File "teste.py", line 109, in run for row in data: File "/usr/lib64/python2.5/site-packages/MySQLdb/cursors.py", line 417, in next row = self.fetchone() File "/usr/lib64/python2.5/site-packages/MySQLdb/cursors.py", line 388, in fetchone r = self._fetch_row(1) File "/usr/lib64/python2.5/site-packages/MySQLdb/cursors.py", line 285, in _fetch_row return self._result.fetch_row(size, self._fetch_type) _mysql_exceptions.OperationalError: (2013, 'Lost connection to MySQL server during query') Exception _mysql_exceptions.OperationalError: (2013, 'Lost connection to MySQL server during query') in <bound method SSCursor.__del__ of <MySQLdb.cursors.SSCursor object at 0x7f7e3c8da410>> ignored # Do you have any idea?

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• Perl DBI execute not maintaining MySQL stored procedure results

  - by David Dolphin

  I'm having a problem with executing a stored procedure from Perl (using the DBI Module). If I execute a simple SELECT * FROM table there are no problems. The SQL code is: DROP FUNCTION IF EXISTS update_current_stock_price; DELIMITER | CREATE FUNCTION update_current_stock_price (symbolIN VARCHAR(20), nameIN VARCHAR(150), currentPriceIN DECIMAL(10,2), currentPriceTimeIN DATETIME) RETURNS INT DETERMINISTIC BEGIN DECLARE outID INT; SELECT id INTO outID FROM mydb449.app_stocks WHERE symbol = symbolIN; IF outID 0 THEN UPDATE mydb449.app_stocks SET currentPrice = currentPriceIN, currentPriceTime = currentPriceTimeIN WHERE id = outID; ELSE INSERT INTO mydb449.app_stocks (symbol, name, currentPrice, currentPriceTime) VALUES (symbolIN, nameIN, currentPriceIN, currentPriceTimeIN); SELECT LAST_INSERT_ID() INTO outID; END IF; RETURN outID; END| DELIMITER ; The Perl code snip is: $sql = "select update_current_stock_price('$csv_result[0]', '$csv_result[1]', '$csv_result[2]', '$currentDateTime') as `id`;"; My::Extra::StandardLog("SQL being used: ".$sql); my $query_handle = $dbh-prepare($sql); $query_handle-execute(); $query_handle-bind_columns(\$returnID); $query_handle-fetch(); If I execute select update_current_stock_price('aapl', 'Apple Corp', '264.4', '2010-03-17 00:00:00') asid; using the mysql CLI client it executes the stored function correctly and returns an existing ID, or the new ID. However, the Perl will only return a new ID, (incrementing by 1 on each run). It also doesn't store the result in the database. It looks like it's executing a DELETE on the new id just after the update_current_stock_price function is run. Any help? Does Perl do anything funky to procedures I should know about? Before you ask, I don't have access to binary logging, sorry

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• SSMS 2008 Add-In - Execute Query

  - by ca8msm

  I'm loading a sql script up to an SSMS 2008 add-in like so: ' create a new blank document ServiceCache.ScriptFactory.CreateNewBlankScript(Microsoft.SqlServer.Management.UI.VSIntegration.Editors.ScriptType.Sql) ' insert SQL statement to the blank document Dim doc As EnvDTE.TextDocument = CType(ServiceCache.ExtensibilityModel.Application.ActiveDocument.Object(Nothing), EnvDTE.TextDocument) doc.EndPoint.CreateEditPoint().Insert(_Output.ToString()) Is there a way to automatically execute the statement as well? Thanks, Mark

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• CodePlex Daily Summary for Wednesday, March 31, 2010

  CodePlex Daily Summary for Wednesday, March 31, 2010New ProjectsBase Class Libraries: The Base Class Libraries site hosts samples, previews, and prototypes from the BCL team. BB Scheduler - BroadBand Scheduler: Broadband Scheduler is highly useful as it helps the user to set the time when the computer will automatically enable the Broadband (Internet) conn...BFBC2 PRoCon: BFBC2 PRoCon makes it easier for Bad Company 2 GSP's and private server owners to administer their BFBC2 servers. It's developed in C# and targete...Business Process Management Virtual Environment (BPMVE): This BPMVE project has been separated into 3 different projects. BPMVE_DataStructure project contains all data structures (classes and attribute...Business Rule Engine BizUnit Test Steps: Business Rule Engine BizUnit Test StepsCint: CintContent Edit Extender for Ajax.Net: The Content Edit Extender is an Ajax.Net control extender that allows in-place editing of a div tag (panel). Double-click to edit, hit enter or tab...COV Game: Cov game is a worms like game made on Silverlight with Python server.Cybera: A continuing development project of the existing but now generally inactive former Cybera project.DotNetCRM Community Edition: DotNetCRM Community Edition is an open source, enterprise class CRM built on the .NET platform. It is designed to be extensible, configurable, data...EAV: A sample EAV pattern for SQL Server with: Tables and indexes Partial referential integrity Partial data typing Updatable views (like normal SQL table)EditRegion.MVC: EditRegion.MVC may be all you want, when you do not want a full CMS. It allows html areas to be edited by nominated users or roles. The API follo...Firestarter Modeller: Firestarter ModellerHabanero.Testability: Habanero.TestabilityProSoft CMS: CMS System - scalable over an undeclared amount of servers - publishing services - version control of sitesPS-Blog.net: This is my first project here on codeplex. I would like to write my own blog software. Any comments or critcs are welcome.ReleaseMe: ReleaseMe is a simple little tool I use to copy websites, and custom Window Services, from my development machine to a specified production machin...SAAS-RD: SAAS-RD: uma ferrameta utilizada para prover integração de SaaS com aplicações externasSample Web Application using Telerik's OpenAccess ORM: Sample Web Site Application Project that uses Telerik's OpenAccess ORM for data access.Sistema Facturacion: En el proyecto de Sistema de Facturacion se desarrollara una aplicacion para el total control de un establecimiento comercial Smooth Habanero: Smooth HabaneroSouthEast Conference 2011: For the Florida Institute of Technology IEEE Chapter regarding the Southeast Hardware Conference held in Nashville, TN 2011.SQL Server Bible Standards: A SQL Server Design and Development standards document. SSAS Profiler Trace Scheduler: AS Profiler Scheduler is a tool that will enable Scheduling of SQL AS Tracing using predefined Profiler Templates. For tracking different issues th...Symbolic Algebra: Another attempt to make an algebric system but to be natively in C# under the .net framework. Theocratic Ministry School System: This is an Open Source Theocratic Ministry School System designed for Jehovah's Witnesses. It will include much of the same features as the TMS ver...Weather Report WebControls: The First Release Version:1.0.10330.2334WPF 3D Labyrinth: A project for "Design and Analysis of Computer Algorithms" subject at Kaunas University of Technology. Building a 3D labyrinth with a figure which ...WPF Zen Garden: This is intended to be a gallery for WPF Style sheets in the form of Css Zen Garden. New ReleasesAPSales CRM - Software as a Service: APSales 0.1.3: This version add some interesting features to the project: Implement "Filter By Additional Fields" in view edit Implement quick create function Im...Base Class Libraries: BigRational: BigRational builds on the BigInteger introduced in .NET Framework 4 to create an arbitrary-precision rational number type. A rational number is a ...Base Class Libraries: Long Path: The long path wrapper provides functionality to make it easier to work with paths that are longer than the current 259 character limit of the Syste...Base Class Libraries: PerfMonitor: PerfMonitor is a command-line tool for profiling the system using Event Tracing for Windows (ETW). PerfMonitor is built on top of the TraceEvent li...Base Class Libraries: TraceEvent: TraceEvent is an experimental library that greatly simplifies reading Event Tracing for Windows (ETW) events. It is used by the PerfMonitor tool. ...BB Scheduler - BroadBand Scheduler: Broadband Scheduler v2.0: - Broadband service has some of the cheap and best monthly plans for the users all over the nation. And some of the plans include unlimited night d...BuildTools - Toolset for automated builds: BuildTools 2.0 Mar 2010 Milestone: The Mar 2010 Milestone release is a contains a bug fixes for projects not explicitly setting the StartingDate property, and no longer breaks when t...Business Rule Engine BizUnit Test Steps: BRE BizUnit Test Steps Ver. 1.0: Version 1.0Claymore MVP: Claymore 1.1.0.0: Changelog Added Compact Framework support Added fluent interface to configure the library.Content Edit Extender for Ajax.Net: ContentEditExtender 1.0 for Ajax.Net: Complete with source control and test/example Website and Web Service. Built with Visual Studio 2008 with the 3.5 BCL. Control requires the AjaxCon...dylan.NET: dylan.NET v. 9.6: This stable version of the compiler for both .NET 3.5 and 4.0 adds the loading of numbers in a bult-in fashion. See code below: #refasm mscorlib...EAV: March 2010: The initial release as demoed at the SSWUG Virtual Conference Spring 2010Fax .NET: Fax .NET 1.0.1: FIX : bugs for x64 and WOW64 architecture. The zip file include : Binary file Demo executable file Help fileFluent Ribbon Control Suite: Fluent Ribbon Control Suite 1.0 for NET 4.0 RC: Includes: Fluent.dll (with .pdb and .xml) compiled with .NET 4.0 RC Test application compiled with .NET 4.0 RC SourcesIceChat: IceChat 2009 Alpha 12.1 Full Install: Build Alpha 12.1 - March 30 2010 Fix Nick Name Change for Tabs/Server List for Queries Fix for running Channel List Multiple Times, clears list n...Import Excel data to SharePoint List: Import Data from Spreadsheet to SP List V1.5 x64: Import from Spreadsheet to a SharePoint List is the missing facet to the WSS 3.0 / MOSS 2007 List features. SharePoint lets a user create a custom...LINQ to Twitter: LINQ to Twitter Beta v2.0.9: New items added since v1.1 include: Support for OAuth (via DotNetOpenAuth), secure communication via https, VB language support, serialization of ...mojoPortal: 2.3.4.1: see release notes on mojoportal.com http://www.mojoportal.com/mojoportal-2341-released.aspxocculo: test: Release build for testers.PowerShell ToodleDo Module: 0.1: Initial Development Release - Very rough build.Quick Performance Monitor: Version 1.2: Fixed issue where app crash when performance counter disappear or becomes unavailable while the application is running. For now the exception is si...Quick Performance Monitor: Version 1.3: Add 'view last error'Rule 18 - Love your clipboard: Rule 18 (Visual Studio 2010 + .NET 4 RC Version): This is the second public beta for the first version of Rule 18. It has had a extensive private beta and been used in big presentations since the ...Selection Maker: Selection Maker 1.5: New Features:If the source folder does not exist,a dialog box will appear and ask the user if he/she wants to create that folder or if select anoth...sPATCH: sPatch v0.9a: + Fixed: wrong path to elementclient.exeSQL Server Bible Standards: March 2010: Initial release as presented at SSWUG Virtual Conference Spring 2010Survey - web survey & form engine: Source Code Documentation: Documentation.chm file as published with Nsurvey v. 1.9.1 - april 2005 Basic technical documentation and description of source code for developers...Theocratic Ministry School System: Theocratic Ministry School System - TMSS: This is the first release of TMSS. It is far from complete but demonstrates the possiablities of what can be done with Access 2007 using developer ...Weather Report WebControls: WeatherReport Controls: 本下载包含一个已经经过编译的二进制运行库和一个测试的WebApplication项目，是2010年3月30日发布的Most Popular ProjectsRawrWBFS ManagerASP.NET Ajax LibraryMicrosoft SQL Server Product Samples: DatabaseSilverlight ToolkitAJAX Control ToolkitWindows Presentation Foundation (WPF)LiveUpload to FacebookASP.NETMicrosoft SQL Server Community & SamplesMost Active ProjectsRawrjQuery Library for SharePoint Web ServicesBase Class LibrariesBlogEngine.NETManaged Extensibility FrameworkFarseer Physics EngineGraffiti CMSMicrosoft Biology FoundationLINQ to Twitterpatterns & practices – Enterprise Library

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• Problem in importing database in MySQL

  - by Krt_Malta

  I have a .sql file with some database backups inside. Now I want to restore them back to MySQL. How can I this using command line of MySqL please? I found this: mysql -u username -p -h localhost database_name < dumpfile.sql but I don't know what username should be, what database_name should be and how I could browse to a .sql file in another folder.

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• Caching NHibernate Named Queries

  - by TStewartDev

  I recently started a new job and one of my first tasks was to implement a "popular products" design. The parameters were that it be done with NHibernate and be cached for 24 hours at a time because the query will be pretty taxing and the results do not need to be constantly up to date. This ended up being tougher than it sounds. The database schema meant a minimum of four joins with filtering and ordering criteria. I decided to use a stored procedure rather than letting NHibernate create the SQL for me. Here is a summary of what I learned (even if I didn't ultimately use all of it): You can't, at the time of this writing, use Fluent NHibernate to configure SQL named queries or imports You can return persistent entities from a stored procedure and there are a couple ways to do that You can populate POCOs using the results of a stored procedure, but it isn't quite as obvious You can reuse your named query result mapping other places (avoid duplication) Caching your query results is not at all obvious Testing to see if your cache is working is a pain NHibernate does a lot of things right. Having unified, up-to-date, comprehensive, and easy-to-find documentation is not one of them. By the way, if you're new to this, I'll use the terms "named query" and "stored procedure" (from NHibernate's perspective) fairly interchangeably. Technically, a named query can execute any SQL, not just a stored procedure, and a stored procedure doesn't have to be executed from a named query, but for reusability, it seems to me like the best practice. If you're here, chances are good you're looking for answers to a similar problem. You don't want to read about the path, you just want the result. So, here's how to get this thing going. The Stored Procedure NHibernate has some guidelines when using stored procedures. For Microsoft SQL Server, you have to return a result set. The scalar value that the stored procedure returns is ignored as are any result sets after the first. Other than that, it's nothing special. CREATE PROCEDURE GetPopularProducts @StartDate DATETIME, @MaxResults INT AS BEGIN SELECT [ProductId], [ProductName], [ImageUrl] FROM SomeTableWithJoinsEtc END The Result Class - PopularProduct You have two options to transport your query results to your view (or wherever is the final destination): you can populate an existing mapped entity class in your model, or you can create a new entity class. If you go with the existing model, the advantage is that the query will act as a loader and you'll get full proxied access to the domain model. However, this can be a disadvantage if you require access to the related entities that aren't loaded by your results. For example, my PopularProduct has image references. Unless I tie them into the query (thus making it even more complicated and expensive to run), they'll have to be loaded on access, requiring more trips to the database. Since we're trying to avoid trips to the database by using a second-level cache, we should use the second option, which is to create a separate entity for results. This approach is (I believe) in the spirit of the Command-Query Separation principle, and it allows us to flatten our data and optimize our report-generation process from data source to view. public class PopularProduct { public virtual int ProductId { get; set; } public virtual string ProductName { get; set; } public virtual string ImageUrl { get; set; } } The NHibernate Mappings (hbm) Next up, we need to let NHibernate know about the query and where the results will go. Below is the markup for the PopularProduct class. Notice that I'm using the <resultset> element and that it has a name attribute. The name allows us to drop this into our query map and any others, giving us reusability. Also notice the <import> element which lets NHibernate know about our entity class. <?xml version="1.0" encoding="utf-8" ?> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"> <import class="PopularProduct, Infrastructure.NHibernate, Version=1.0.0.0"/> <resultset name="PopularProductResultSet"> <return-scalar column="ProductId" type="System.Int32"/> <return-scalar column="ProductName" type="System.String"/> <return-scalar column="ImageUrl" type="System.String"/> </resultset> </hibernate-mapping>  And now the PopularProductsMap: <?xml version="1.0" encoding="utf-8" ?> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"> <sql-query name="GetPopularProducts" resultset-ref="PopularProductResultSet" cacheable="true" cache-mode="normal"> <query-param name="StartDate" type="System.DateTime" /> <query-param name="MaxResults" type="System.Int32" /> exec GetPopularProducts @StartDate = :StartDate, @MaxResults = :MaxResults </sql-query> </hibernate-mapping>  The two most important things to notice here are the resultset-ref attribute, which links in our resultset mapping, and the cacheable attribute. The Query Class – PopularProductsQuery So far, this has been fairly obvious if you're familiar with NHibernate. This next part, maybe not so much. You can implement your query however you want to; for me, I wanted a self-encapsulated Query class, so here's what it looks like: public class PopularProductsQuery : IPopularProductsQuery { private static readonly IResultTransformer ResultTransformer; private readonly ISessionBuilder _sessionBuilder;   static PopularProductsQuery() { ResultTransformer = Transformers.AliasToBean<PopularProduct>(); }   public PopularProductsQuery(ISessionBuilder sessionBuilder) { _sessionBuilder = sessionBuilder; }   public IList<PopularProduct> GetPopularProducts(DateTime startDate, int maxResults) { var session = _sessionBuilder.GetSession(); var popularProducts = session .GetNamedQuery("GetPopularProducts") .SetCacheable(true) .SetCacheRegion("PopularProductsCacheRegion") .SetCacheMode(CacheMode.Normal) .SetReadOnly(true) .SetResultTransformer(ResultTransformer) .SetParameter("StartDate", startDate.Date) .SetParameter("MaxResults", maxResults) .List<PopularProduct>();   return popularProducts; } }  Okay, so let's look at each line of the query execution. The first, GetNamedQuery, matches up with our NHibernate mapping for the sql-query. Next, we set it as cacheable (this is probably redundant since our mapping also specified it, but it can't hurt, right?). Then we set the cache region which we'll get to in the next section. Set the cache mode (optional, I believe), and my cache is read-only, so I set that as well. The result transformer is very important. This tells NHibernate how to transform your query results into a non-persistent entity. You can see I've defined ResultTransformer in the static constructor using the AliasToBean transformer. The name is obviously leftover from Java/Hibernate. Finally, set your parameters and then call a result method which will execute the query. Because this is set to cached, you execute this statement every time you run the query and NHibernate will know based on your parameters whether to use its cached version or a fresh version. The Configuration – hibernate.cfg.xml and Web.config You need to explicitly enable second-level caching in your hibernate configuration: <hibernate-configuration xmlns="urn:nhibernate-configuration-2.2"> <session-factory> [...] <property name="dialect">NHibernate.Dialect.MsSql2005Dialect</property> <property name="cache.provider_class">NHibernate.Caches.SysCache.SysCacheProvider,NHibernate.Caches.SysCache</property> <property name="cache.use_query_cache">true</property> <property name="cache.use_second_level_cache">true</property> [...] </session-factory> </hibernate-configuration> Both properties "use_query_cache" and "use_second_level_cache" are necessary. As this is for a web deployement, we're using SysCache which relies on ASP.NET's caching. Be aware of this if you're not deploying to the web! You'll have to use a different cache provider. We also need to tell our cache provider (in this cache, SysCache) about our caching region: <syscache> <cache region="PopularProductsCacheRegion" expiration="86400" priority="5" /> </syscache> Here I've set the cache to be valid for 24 hours. This XML snippet goes in your Web.config (or in a separate file referenced by Web.config, which helps keep things tidy). The Payoff That should be it! At this point, your queries should run once against the database for a given set of parameters and then use the cache thereafter until it expires. You can, of course, adjust settings to work in your particular environment. Testing Testing your application to ensure it is using the cache is a pain, but if you're like me, you want to know that it's actually working. It's a bit involved, though, so I'll create a separate post for it if comments indicate there is interest.

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• Struts2 example, not inserting records in mysql database because connection object is getting null

  - by Jugal

  This Code is working fine with simple application so the drivers are fine. so why the connection object is not able to initialise with drivers. import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; import java.sql.Statement; import com.opensymphony.xwork2.ActionSupport; public class Insert extends ActionSupport { public String execute() throws Exception, SQLException { String sql = ""; String url = "jdbc:mysql://localhost:3306/test"; //String dbName = "test"; String driverName = "org.gjt.mm.mysql.Driver"; String userName = "root"; String password = "root"; Connection con=null; Statement stmt=null; try { Class.forName(driverName).newInstance(); con = DriverManager.getConnection(url, userName, password); stmt = con.createStatement(); } catch (Exception e) { System.out.println(e.getMessage()); } }

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• How to refresh linked tables in an Access mdb when ODBC changes

  - by beta tester ben

  I can create an Access mdb and add a linked table to an Sql Server database via ODBC. If I change the Sql Server that the ODBC is connecting to with the ODBC control panel applet the mdb still connects to the original Sql Server until Access is restarted. Is there a way to relink these linked server tables without restarting Access? EDIT: I would like to do this in code

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• How I Work: A Cloud Developer's Workstation

  - by BuckWoody

  I've written here a little about how I work during the day, including things like using a stand-up desk (still doing that, by the way). Inspired by a Twitter conversation yesterday, I thought I might explain how I set up my computing environment. First, a couple of important points. I work in Cloud Computing, specifically (but not limited to) Windows Azure. Windows Azure has features to run a Virtual Machine (IaaS), run code without having to control a Virtual Machine (PaaS) and use databases, video streaming, Hadoop and more (a kind of SaaS for tech pros). As such, my designs run the gamut of on-premises, VM's in the Cloud, and software that I write for a platform. I focus on data primarily, meaning that I design a lot of systems that use an RDBMS (like SQL Server or Windows Azure Databases) or a NoSQL approach (MongoDB on Azure or large-scale Key-Value Pairs in Table storage) and even Hadoop and R, and also Cloud Numerics in F#. All that being said, those things inform my choices below. Hardware I have a Lenovo X220 tablet/laptop which I really like a great deal - it's a light, tough, extremely fast system. When I travel, that's the system I take. It has 8GB of RAM, and an SSD drive. I sometimes use that to develop or work at a client's site, on the road, or in the living room when I'm not in my home office. My main system is a GateWay DX430017 - I've maxed it out on RAM, and I have two 1TB drives in it. It's not only my workstation for work; I leave it on all the time and it streams our videos, music and books. I have about 3400 e-books, and I've just started using Calibre to stream the library. I run Windows 8 on it so I can set up Hyper-V images, since Windows Azure allows me to move regular Hyper-V disks back and forth to the Cloud. That's where all my "servers" are, when I have to use an IaaS approach. The reason I use a desktop-style system rather than a laptop only approach is that a good part of my job is setting up architectures to solve really big, complex problems. That means I have to simulate entire networks on-premises, along with the Hybrid Cloud approach I use a lot. I need a lot of disk space and memory for that, and I use two huge monitors on my stand-up desk. I could probably use 10 monitors if I had the room for them. Also, since it's our home system as well, I leave it on all the time and it doesn't travel.   Software For the software for my systems, it's important to keep in mind that I not only write code, but I design databases, teach, present, and create Linux and other environments. Windows 8 - While the jury is out for me on the new interface, the context-sensitive search, integrated everything, and speed is just hands-down the right choice. I've evaluated a server OS, Linux, even an Apple, but I just am not as efficient on those as I am with Windows 8. Visual Studio Ultimate - I develop primarily in .NET (C# and F# mostly) and I use the Team Foundation Server in the cloud, and I'm asked to do everything from UI to Services, so I need everything. Windows Azure SDK, Windows Azure Training Kit - I need the first to set up my Azure PaaS coding, and the second has all the info I need for PaaS, IaaS and SaaS. This is primarily how I get paid. :) SQL Server Developer Edition - While I might install Oracle, MySQL and Postgres on my VM's, the "outside" environment is SQL Server for an RDBMS. I install the Developer Edition because it has the same features as Enterprise Edition, and comes with all the client tools and documentation. Microsoft Office -  Even if I didn't work here, this is what I would use. I've just grown too accustomed to doing business this way to change, so my advice is always "use what works", and this does. The parts I use are: OneNote (and a Math Add-in) - I do almost everything - and I mean everything in OneNote. I can code, do high-end math, present, design, collaborate and more. All my notebooks are on my Skydrive. I can use them from any system, anywhere. If you take the time to learn this program, you'll be hooked. Excel with PowerPivot - Don't make that face. Excel is the world's database, and every Data Scientist I know - even the ones where I teach at the University of Washington - know it, use it, and love it.  Outlook - Primary communications, CRM and contact tool. I have all of my social media hooked up to it, so when I get an e-mail from you, I see everything, see all the history we've had on e-mail, find you on a map and more. Lync - I was fine with LiveMeeting, although it has it's moments. For me, the Lync client is tres-awesome. I use this throughout my day, present on it, stay in contact with colleagues and the folks on the dev team (who wish I didn't have it) and more.  PowerPoint - Once again, don't make that face. Whenever I see someone complaining about PowerPoint, I have 100% of the time found they don't know how to use it. If you suck at presenting or creating content, don't blame PowerPoint. Works great on my machine. :) Zoomit - Magnifier - On Windows 7 (and 8 as well) there's a built-in magnifier, but I install Zoomit out of habit. It enlarges the screen. If you don't use one of these tools (or their equivalent on some other OS) then you're presenting/teaching wrong, and you should stop presenting/teaching until you get them and learn how to show people what you can see on your tiny, tiny monitor. :) Cygwin - Unix for Windows. OK, that's not true, but it's mostly that. I grew up on mainframes and Unix (IBM and HP, thank you) and I can't imagine life without  sed, awk, grep, vim, and bash. I also tend to take a lot of the "Science" and "Development" and "Database" packages in it as well. PuTTY - Speaking of Unix, when I need to connect to my Linux VM's in Windows Azure, I want to do it securely. This is the tool for that. Notepad++ - Somewhere between torturing myself in vim and luxuriating in OneNote is Notepad++. Everyone has a favorite text editor; this one is mine. Too many features to name, and it's free. Browsers - I install Chrome, Firefox and of course IE. I know it's in vogue to rant on IE, but I tend to think for myself a great deal, and I've had few (none) problems with it. The others I have for the haterz that make sites that won't run in IE. Visio - I've used a lot of design packages, but none have the extreme meta-data edit capabilities of Visio. I don't use this all the time - it can be rather heavy, but what it does it does really well. I also present this way when I'm not using PowerPoint. Yup, I just bring up Visio and diagram away as I'm chatting with clients. Depending on what we're covering, this can be the right tool for that. Tweetdeck - The AIR one, not that new disaster they came out with. I live on social media, since you, dear readers, are my cube-mates. When I get tired of you all, I close Tweetdeck. When I need help or someone needs help from me, or if I want to see a picture of a cat while I'm coding, I bring it up. It's up most all day and night. Windows Media Player - I listen to Trance or Classical when I code, and I find music managers overbearing and extra. I just use what comes in the box, and it works great for me. R - F# and Cloud Numerics now allows me to load in R libraries (yay!) and I use this for statistical work on big data loads. Microsoft Math - One of the most amazing, free, rich, amazing, awesome, amazing calculators out there. I get the 64-bit version for quick math conversions, plots and formula-checks. Python - I know, right? Who knew that the scientific community loved Python so much. But they do. I use 2.7; not as much runs with 3+. I also use IronPython in Visual Studio, or I edit in Notepad++ Camstudio recorder - Windows PSR - In much of my training, and all of my teaching at the UW, I need to show a process on a screen. Camstudio records screen and voice, and it's free. If I need to make static training, I use the Windows PSR tool that's built right in. It's ostensibly for problem duplication, but I use it to record for training.   OK - your turn. Post a link to your blog entry below, and tell me how you set your system up.  

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• Atomically increment a field using SubSonic 3 ActiveRecord.

  - by cantabilesoftware

  I'm tring to increment a field in a MySQL database using SubSonic 3 ActiveRecord. In SQL, this is what I'm after: UPDATE people SET messages_received=messages_received+1 WHERE people_id=@id_to; I tried the following, but it didn't seem to work (messages_received always seemed to be 1): _db.Update<person>() .Set("messages_received").EqualTo(x => x.messages_received == x.messages_received + 1) .Where(x => x.people_id == idTo) .Execute(); This did work: string sql="UPDATE people SET messages_received=messages_received+1 WHERE people_id=@id_to"; var q=new SubSonic.Query.QueryCommand(sql, _db.Provider); q.AddParameter("id_to", idTo); q.Provider.ExecuteQuery(q); So I have a solution, but I'm just wondering if it's possible to do this without resorting to plain SQL?

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