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• [C#] How to convert string encoded in windows-1250 to unicode ?

  - by Deveti Putnik

  Hi! I am receiving from some dll (which is wrapper for some external data source) strings in Windows-1250 codepage and I would like to insert them correctly (as unicode) to table in SQL Server Database. Since particular row in database which should hold that data is of NVarchar type, I only needed to convert it in my C# code to unicode and pass it as parameter. Everything is well and nice, but I stumbled on conversion step. I tried the following but that doesn't work: private static String getUnicodeValue(string string2Encode) // { Encoding srcEncoding = Encoding.GetEncoding("Windows-1250"); UnicodeEncoding dstEncoding = new UnicodeEncoding(); byte[] srcBytes = srcEncoding.GetBytes(string2Encode); byte[] dstBytes = dstEncoding.GetBytes(string2Encode); return dstEncoding.GetString(dstBytes); } When I insert this returned string to table, I don't get correct letters like Ð, d, C, c, C or c. Please, help! :)

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• ajax: don't wait for response, but check for it periodically

  - by dnagirl

  I have a PHP process that takes a long time to run. I don't want the AJAX process that calls it to wait for it to finish. When the PHP process finishes it will set a field in a database. There should be some kind of AJAX polling call to check on the database field periodically and set a message. How do I set up a jQuery AJAX call to poll rather than wait? Does the PHP script have to do anything special?

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• Timer or Thread?

  - by Pradeep Singh

  I have a method(say method1) that writes to database(sqlserver)and another method(say method2) that tries to access the same database after some time and updates the data row that was created by method1. The problem arises when method1 fails to access db due to the LAN being disconnected (this is not an exception this is a scenario that will definitely arise in my software, getting into details will make the question too complex) if method1 fails to access db method2 cannot work. What I want to do is to make method1 store values to local db instead of server if the LAN is disconnected and as soon as it enters value in local db the application should start trying to access the server after ever 10-15 seconds. What should I use timer or create a new thread?

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• Best way to find updates in xml feed

  - by misterjinx

  Hello all, I have an xml feed that I have to check periodically for updates. The xml consists of many elements and I'm looking to figure it out which is the best (and probably faster) way to find out which elements suffered updates from last time I've checked. What I think of is to check first the lastBuildDate for modifications and if it differs from the previous one to start parse the xml again. This would involve keeping each element with all of its attributes in my database. But each element can have different number of attributes as well as other nested elements. So if it would be to store each element in my database what would be the best way to keep them ? That's why I'm asking for your help :) Thank you.

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• What to consider if using triggers on tables in a sql-server merge replication

  - by Ice

  Hi, i am driving since some years a sql-server2000 merge-replication over three locations. Triggers do a lot of work in this database. i got no troubles. Now migrating these database to a brand new sql2008, i got some issues about the triggers. They are firing even if the merge-agent does his work. Is there anybody who has some experience with that kind of stuff on sql2008-server? Can anybody confirm that different behaviour to sql2000? Peace Ice

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• What useful GDB scripts have you used/written?

  - by nik

  People use gdb on and off for debugging, of course there are lots of other debugging tools across the varied OSes, with and without GUI and, maybe other fancy IDE features. I would like to know what useful gdb scripts you have written and liked. While, I do not mean a dump of commands in a something.gdb file that you source to pull out a bunch of data, if that made your day, go ahead and talk about it. Lets think conditional processing, control loops and functions written for more elegant and refined programming to debug and, maybe even for whitebox testing Things get interesting when you start debugging remote systems (say, over a serial/ethernet interface) And, what if the target is a multi-processor (and, multithreaded) system Let me put a simple case as an example... Say, A script that traversed serially over entries to locate a bad entry in a large hash-table that is implemented on an embedded platform. That helped me debug a broken hash-table once.

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• How do I call window.openDatabase from a webView hosted in an android application?

  - by Kevin

  I created a native Android app that basically hosts a webView control. That webView is then used to load a page that calls window.openDatabase from JavaScript. I can successfully confirm that the API exists by verifying window.openDatabase. Calling this method returns a null when called in a hosted webView control. Calling the same method in the Android Browser returns an instance of the database. Does anyone know the permessions in the manifest or settings on the webView control that need to be set to access the database? Is this even possible in a native app.

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• Membership provider stopped working on using Membership Provider in ASP.Net MVC

  - by Michael Meadows

  I have a production ASP.Net MVC application that has been using the membership service. It has worked fine, up until today. Nothing has changed on the server, but I now have this error: System.Configuration.Provider.ProviderException: The 'System.Web.Security.SqlMembershipProvider' requires a database schema compatible with schema version '1'. However, the current database schema is not compatible with this version. You may need to either install a compatible schema with aspnet_regsql.exe (available in the framework installation directory), or upgrade the provider to a newer version. I checked the asp_schemaversions table, and it looks fine. Please any help would be appreciated.

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• How to use LIKE query in sqlite & iPhone

  - by 4thSpace

  I'm using the following for a LIKE query. Is this technique for LIKE correct? selectstmtSearch = nil; if(selectstmtSearch == nil){ const char *sql = "SELECT col1, col2 FROM table1 t1 JOIN table2 t2 ON t1.cityid = t2.cityid where t1.cityname like ?001 order by t1.cityname"; if(sqlite3_prepare_v2(databaseSearch, sql, -1, &selectstmtSearch, NULL) == SQLITE_OK) { sqlite3_bind_text(selectstmtSearch, 1, [[NSString stringWithFormat:@"%%%@%%", searchText] UTF8String], -1, SQLITE_TRANSIENT); } } The problem I'm having is after a few uses of this, I get an error 14 on sqlite3_open(), which is unable to open database. If I replace the LIKE with something such as: SELECT col1, col2 FROM table1 t1 JOIN table2 t2 ON t1.cityid = t2.cityid where t1.cityname = ? order by t1.cityname It works fine. I do open/close the DB before after the above code. Is there a way to troubleshoot exactly why the database can't be opened and what its relationship to my LIKE syntax is?

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• Unique identifier for an email

  - by Skywalker

  I am writing a C# application which allows users to store emails in a MS SQL Server database. Many times, multiple users will be copied on an email from a customer. If they all try to add the same email to the database, I want to make sure that the email is only added once. MD5 springs to mind as a way to do this. I don't need to worry about malicious tampering, only to make sure that the same email will map to the same hash and that no two emails with different content will map to the same hash. My question really boils down to how one would combine multiple fields into one MD5 (or other) hash value. Some of these fields will have a single value per email (e.g. subject, body, sender email address) while others will have multiple values (varying numbers of attachments, recipients). I want to develop a way of uniquely identifying an email that will be platform and language independent (not based on serialization). Any advice?

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• vb.net program cannot connect to wampserver

  - by user225269

  I have a vb.net program that uses mysql as its database. And it works when the computer has wampservr installed. But the program gets an unhandled exception error when the computer where its running does not have a wampserver. The only thing that is installed in it is the mysql connector net. How do I make it work. I just want the two programs to access the same mysql database. I already opened port 20 by configuring firewall. Both in TCP and UDP. What do I do? Do I have to tweak the codes?

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• T-SQL IsNumeric() and Linq-to-SQL

  - by cdonner

  I need to find the highest value from the database that satisfies a certain formatting convention. Specifically, I would like to fund the highest value that looks like EU999999 ('9' being any digit) select max(col) will return something like 'EUZ...' for instance that I want to exclude. The following query does the trick, but I can't produce this via Linq-to-SQL. There seems to be no translation for the isnumeric() function in SQL Server. select max(col) from table where col like 'EU%' and 1=isnumeric(replace(col, 'EU', '')) Writing a database function, stored procedure, or anything else of that nature is far down the list of my preferred solutions, because this table is central to my app and I cannot easily replace the table object with something else. What's the next-best solution?

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• Open an Excel htm URL via iFrame in a separate browser

  - by Mark Robinson

  I have some URLs in an Excel file which I have saved as a .htm (webpage) file. I then view these in a browser via our wiki (MediaWiki). This is done using an iFrame embedded in the wiki page. So, just for clarity, the link is in a htm file viewed via an iFrame in a wiki page. When I click on that link, it opens inside the iFrame. What I want is for it to open in a new browser window. (This should be the user's default browser since some use Internet Explorer and some Firefox.) The final twist is that some users have Windows XP and some Solaris. Help greatly appreciated.

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• How do I trap the ENTER key in WM 6.1 using C++

  - by Rob King

  Hi,Our barcode scanner application is written in C++ eMbedded V 4.00 and works well on the Motorola MC50 WM5 where the ENTER key is interpreted as an IDOK. We are moving the app to the MC55 with WM6.1 and the ENTER key does not translate to an IDOK. I'm of the impression we will have to programatically trap the key entry (or the value passed on via DataWedge). I have made several attempts to implement either a HOTKEY or something via an Accelerator Table but have been unable to interpret the Microsoft on-line descriptions. If there is a simpler answer that would be good news. If not, a more specific example than the MS samples would be greatly appreciated. Thanks in advance.

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• Let MySQL users create databases, but allow access to only their own databases

  - by eikes

  I want to have multiple a MySQL users to be able to issue commands like CREATE DATABASE dbTest; But I also want each of these users to be able to see and access only their own databases. All I could find was how to either create the databases by a DBA and grant the privileges on this database to the specific user: GRANT ALL PRIVILEGES ON dbTest.* TO 'user'; or grant privileges on all databases to a user: GRANT ALL PRIVILEGES ON *.* TO 'user'; But neither is what I want, because it needs to scale and be secure.

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• Updating DataGridView from another Form using BackGroundWorker

  - by FezKazi

  Hi! I Have one Form (LoginForm) which has a Background Worker Monitoring a database for new entries. Then I have another Form (AdminForm) which I need to signal to update its datagrids whenever new data is available. I could poll the database in the AdminForm too, but considering that LoginForm is already doing some polling, which can be costly, I just want to signal AdminForm to update the DataGridViews with the new data. You may ask, why is LoginForm doing the polling when youre showing the stuff in the AdminForm? Well, LoginForm is actually processing the data and sending it over the Serial Port :$ heheh. I want it to be able to process the data without having an administrator logged in all the time.

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• ASP.Net RADs: Dynamic Data alternatives

  - by SDReyes

  Hi Guys! We have a set of tables and views that merely store some config data for embedded devices. this schema is change-prone and do not really required lots of logic, beyond some validation rules. so we considered using a RAD tool for maintaining these CRUDS. In first stage: Dynamic Data But the community size, books absence and the last modification dates of the MSDN articles (~July 2008) makes me want to hear your experiences. (actually DynamicData comes as a part of the ASP.Net MVC2 project) What has been your experience with Dynamic Data? And... What is your favorite ASP.Net RAD alternative? Why? Thank you in advance guys! PD: Entity framework friendliness is a bonus : )

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• How do I insert into a unique key into a table?

  - by Ben McCormack

  I want to insert data into a table where I don't know the next unique key that I need. I'm not sure how to format my INSERT query so that the value of the Key field is 1 greater than the maximum value for the key in the table. I know this is a hack, but I'm just running a quick test against a database and need to make sure I always send over a Unique key. Here's the SQL I have so far: INSERT INTO [CMS2000].[dbo].[aDataTypesTest] ([KeyFld] ,[Int1]) VALUES ((SELECT Max([KeyFld]) FROM [dbo].[aDataTypesTest]) + 1 ,1) which errors out with: Msg 1046, Level 15, State 1, Line 5 Subqueries are not allowed in this context. Only scalar expressions are allowed. I'm not able to modify the underlying database table. What do I need to do to ensure a unique insert in my INSERT SQL code?

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• How to use V8's built in functions

  - by Victor jiang

  I'm new in both javascript and V8. According to Google's Embedder's Guide, I saw something in the context section talking about built-in utility javascript functions. And I also found some .js files(e.g. math.js) in the downloaded source code, so I tried to write a simple program to call functions in these files, but I failed. Does a context created by Persistent<Context> context = Context::New() have any built-in js functions? How can I access them? Is there a way to first import existing js files as a library(something like src="xxx" type="text/javascript" in HTML page) and then run my own execute script? Can I call google maps api through the embedded V8 library in app? How?

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• Oracle JDBC connection exception in Solaris but not Windows?

  - by lupefiasco

  I have some Java code that connects to an Oracle database using DriverManager.getConnection(). It works just fine on my Windows XP machine. However, when running the same code on a Solaris machine, I get the following exception. Both machines can reach the database machine on the network. I have included the Oracle trace logs. Mar 23, 2010 12:12:33 PM org.apache.commons.configuration.ConfigurationUtils locate FINE: ConfigurationUtils.locate(): base is /users/theUser/ADCompare, name is props.txt Mar 23, 2010 12:12:33 PM org.apache.commons.configuration.ConfigurationUtils locate FINE: Loading configuration from the path /users/theUser/ADCompare/props.txt Mar 23, 2010 12:12:33 PM oracle.jdbc.driver.OracleDriver connect FINE: OracleDriver.connect(url=jdbc:oracle:thin:@//theServer:1521/theService, info) Mar 23, 2010 12:12:33 PM oracle.jdbc.driver.OracleDriver connect FINER: OracleDriver.connect() walletLocation:(null) Mar 23, 2010 12:12:33 PM oracle.jdbc.driver.OracleDriver parseUrl FINER: OracleDriver.parseUrl(url=jdbc:oracle:thin:@//theServer:1521/theService) Mar 23, 2010 12:12:33 PM oracle.jdbc.driver.OracleDriver parseUrl FINER: sub_sub_index=12, end=46, next_colon_index=16, user=17, slash=18, at_sign=17 Mar 23, 2010 12:12:33 PM oracle.jdbc.driver.OracleDriver parseUrl FINER: OracleDriver.parseUrl(url):return Mar 23, 2010 12:12:33 PM oracle.jdbc.driver.OracleDriver connect FINER: user=theUser, password=******, database=//theServer:1521/theService, protocol=thin, prefetch=null, batch=null, accumulate batch result =true, remarks=null, synonyms=null Mar 23, 2010 12:12:33 PM oracle.jdbc.driver.PhysicalConnection <init> FINE: PhysicalConnection.PhysicalConnection(ur="jdbc:oracle:thin:@//theServer:1521/theService", us="theUser", p="******", db="//theServer:1521/theService", info) Mar 23, 2010 12:12:33 PM oracle.jdbc.driver.PhysicalConnection <init> FINEST: PhysicalConnection.PhysicalConnection() : connectionProperties={user=theUser, password=******, protocol=thin} Mar 23, 2010 12:12:33 PM oracle.jdbc.driver.PhysicalConnection initialize FINE: PhysicalConnection.initialize(ur="jdbc:oracle:thin:@//theServer:1521/theService", us="theUser", access) Mar 23, 2010 12:12:33 PM oracle.jdbc.driver.PhysicalConnection initialize FINE: PhysicalConnection.initialize(ur, us):return Mar 23, 2010 12:12:33 PM oracle.jdbc.driver.PhysicalConnection needLine FINE: PhysicalConnection.needLine()--no return java.lang.ArrayIndexOutOfBoundsException: 31 at oracle.net.nl.NVTokens.parseTokens(Unknown Source) at oracle.net.nl.NVFactory.createNVPair(Unknown Source) at oracle.net.nl.NLParamParser.addNLPListElement(Unknown Source) at oracle.net.nl.NLParamParser.initializeNlpa(Unknown Source) at oracle.net.nl.NLParamParser.<init>(Unknown Source) at oracle.net.resolver.TNSNamesNamingAdapter.loadFile(Unknown Source) at oracle.net.resolver.TNSNamesNamingAdapter.checkAndReload(Unknown Source) at oracle.net.resolver.TNSNamesNamingAdapter.resolve(Unknown Source) at oracle.net.resolver.NameResolver.resolveName(Unknown Source) at oracle.net.resolver.AddrResolution.resolveAndExecute(Unknown Source) at oracle.net.ns.NSProtocol.establishConnection(Unknown Source) at oracle.net.ns.NSProtocol.connect(Unknown Source) at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1037) at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:282) at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:468) at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165) at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35) at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:839) at java.sql.DriverManager.getConnection(DriverManager.java:582) at java.sql.DriverManager.getConnection(DriverManager.java:185) The above exception is also thrown if I use OracleDataSource instead of the generic DriverManager.getConnection(). Any ideas on why the behavior is different in the different environments?

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• I want to port my delicious bookmarks to my website

  - by puneet

  I started building a app that will automatically download my delicious bookmarks, and save to a database, so they I can view them on my own website in my favoured format. I am forced to use oAuth, as I have a yahoo id to login to delicious. The problem is I am stuck at the point where oAuth requires a user to manually go and authenticate. Is there a code/ guidelines available anywhere I can follow? All I want is a way to automatically save my bookmarks to my database. Any help is appreciated. I can work on java, .net and php. Thanks.

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• Setting data source for reports in Crystal Reports 2008 Java (performance)

  - by Daniel

  Hi, we have Crystal Reports 2008 on the server, and use the Java SDK to display reports and convert them to PDF. Since the server hat its own database, we have to set the data source on the DatabaseController to make CR connect to this database. We do it like specified in the docs, and tried the functions in CRJavaHelper, but for a reason unknown to me setting the connection string takes 300ms to 1500ms. What is the fastest way to tell Crystal which datasource to use in its reports? I already saw a JNDI name somewhere, but i don't believe CR actually does a JNDI lookup to find an existing datasource, doesn't it?

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• Read values from resx files?

  - by Nimesh

  How to read strings from the MyResource.resx file from c#. I am not calling this from the asp.net page, rather i am calling from my bussiness logic. Assembly assembly = this.GetType().Assembly; ResourceManager resourceManager = new ResourceManager("MessagesResource", assembly); resourceManager.GetString("SCHEME_UNQ"); here i am getting exception, Could not find any resources appropriate for the specified culture or the neutral culture. Make sure "MessagesResource.resources" was correctly embedded or linked into assembly "App_Web_eerdggo8" at compile time, or that all the satellite assemblies required are loadable and fully signed. How can i fix this issue????

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• Sql Server security Issue

  - by MZT

  how to add Sql server user for specific database with backup and restore permission only ??

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• JBoss Seam - Jetty - Virtualhosting

  - by Walter White

  Hi all, I am trying to cutback on the memory usage of my server and would like to optimize the architecture. I currently deploy 2 separate web applications to Jetty 6.1.22 that correspond to different virtualhosts. They have pretty much the same application stack except one has fewer components and are styled differently (content, images, css, etc.). If I change my design pattern over to EJB / EAR + 2 WARS embedded, will that lower the memory consumption? Will that give me a single instance of JBoss Seam, Quartz, and all of my components? They must use a different datasource. Thanks, Walter

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