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• "The specified table does not exist" - for the administrator it does! Vista only issue

  - by Simon Nunn

  Hello, I've got a weird bug occurring in a compact database on a Vista deployment machine. Basically the sdf file seem to be schizophrenic. The client application get the entitled error when running as a user but not when I use run as administrator. I don't see this problem on my XP development machine. I installed management studio onto the deployment machine and opened two versions of the application, one as user and one as administrator. When I query: SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES I see 21 tables on the one and 26 on the other, and the administrator is seeing less tables. It turns out that the user version, with 26 rows, is a previous incarnation of this database. Any ideas on why this is happening?

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• Objective-C : Trouble with file download

  - by Holli

  I ran in a bit of trouble downloading files with Objective-C. I use the download decideDestinationWithSuggestedFilename from Apples documentation page. http://developer.apple.com/mac/library/documentation/cocoa/conceptual/URLLoadingSystem/Tasks/UsingNSURLDownload.html As long as I want to download just one file it works fine but I want to download an array for files one by one. The problem starts with the second file. Right now my code will trigger the next download itself from the downloadDidFinish Method. Then I will get an unrecognized selector sent to instance error. For me it looks like the NSURLDownload that just finished the download is still in use somehow. Release is called but the must be a problem. If I just put an NSBeep in the downloadDidFinished Method and trigger the next file download manually it works fine. Looks like I have to wait a while till I can start the next download. I know this question is a bit vague but maybe someone got an idea.

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• Instantiating a context in LINQ to Entities

  - by Jagd

  I've seen two different manners that programmers approach when creating an entity context in their code. The first is like such, and you can find it all over the MSDN code examples: public void DoSomething() { using TaxableEducationEntities context = new TaxableEducationEntities()) { // business logic and whatever else } } The second is to create the context as a private attribute in some class that encapsulates your business logic. So you would have something like: public class Education_LINQ { private TaxableEducationEntities context = new TaxableEducationEntities(); public void DoSomething() { var result = from a in context.luAction select a; // business logic and whatever else } } Which way is more efficient? Assume that you have two methods, one called DoSomething1() and another called DoSomething2(), and both methods incorporate the using statement to open the context and do whatever with it. Were you to call one method after the other, would there be any superfluous overhead going on, since essentially both methods create the context and then clean it up when they're done? As opposed to having just one private attribute that is created when a class object is instantiated, and then in turn cleaned up when the object goes out of scope?

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• Spry Collapsible Panel within Collapsible Panel, inconsistent errors.

  - by Robin I Knight

  Hello everyone it is me again with another question. The booking system located here http://www.divethegap.com/scuba-diving-programmes-dive-the-gap/divemaster-training.php?cat=16 There are 3 main collapsible panels controlled by the spry framework. There are then over a dozen more inside the first collapsible panel as you can see on that page. When you open one of those by pressing one of the 'learn more' buttons you will see that the main collapsible panel that it is in also expands to fit that content and the contracts if you close the smaller panel again. However as soon as you go to the next main collapsible panel 'summery and quote' and then go back to the first main panel by pressing the button that says 'back' there are problems. Now if you open up one of the smaller panels inside the first main panel you will see that the main panel does not expand to fit the contents and in fact the content of the smaller panels spreads over the other content, floating above it. Does anybody know how to fix this? Many Thanks,

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• Improve mysql JDBC insert call

  - by richs

  i have a legacy Java system that every time it gets an order it makes a JDBC call to a stored procedure for each field in the order. Generally the stored procedure will get called 20 to 30 times for each order. The store procedure is just doing an insert into a table for each field. i need to improve the performance of this operation. one thought i had was to create an insert query string that does multiple inserts in one JDBC call. MySql supports a multiple insert string. INSERT INTO PersonAge (name, age) VALUES ('Helen', 24), ('Katrina', 21), ('Samia', 22), ('Hui Ling', 25), ('Yumie', 29) This has the advantage of only requiring one JDBC call per order. Any other ideas on how to improve performance?

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• No Hibernate Session bound to thread grails

  - by naresh

  Actually we've lot of quartz jobs in our application. For some time all of the jobs work fine. After some time all jobs are throwing the following exception. org.quartz.JobExecutionException: No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here [See nested exception: java.lang.IllegalStateException: No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here] at grails.plugins.quartz.QuartzDisplayJob.execute(QuartzDisplayJob.groovy:37) at org.quartz.core.JobRunShell.run(JobRunShell.java:202) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573) Caused by: java.lang.IllegalStateException: No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here at grails.plugins.quartz.QuartzDisplayJob.execute(QuartzDisplayJob.groovy:29) ... 2 more

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• Add / remove a port number to/from a URL with REGEX in PHP

  - by SuperDuck

  Hello guys, I've searched but was unable to find an existing regex function. Has anybody done this before? I wish to add a port number, or remove a potantially existing one from a url in php. To use in some functions which translate a given url to the secure one, unsecure one, etc. Now I need a second SSL secured site on the server so I need to dynamically add a port number while converting http to https, and remove any port number while converting from https to http. Thanks, Duck

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• Java binary files writeUTF... explain specifications...

  - by user69514

  I'm studying Java on my own. One of the exercises is the following, however I do not really understand what it is asking to.... any smart java gurus out there that could explain this in more detail and simple words? Thanks Suppose that you have a binary file that contains numbers whos type is either int or double. You dont know the order of the numbers in the file, but their order is recorded in a string at the begining of the file. The string is composed of the letters i for int, and d for double, in the order of the types of the subsequent numbers. The string is written using the method writeUTF. For example the string "iddiiddd" indicated that the file contains eight values, as follows: one integer, followed by two doubles, followed by two integers, followed by three doubles. Read this binary file and create a new text file of the values written one to a line.

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• Handling update errors in multiple records in the TClientDataset's ReconcileError method

  - by Fabio Gomes

  I'm trying to use the ReconcileError event to allow the user to correct the data after an update error which occurred in a specific record among others. Example: I have a dataset with one field and 3 records, this field have a unique constraint on the database, then I change one value to conflict when it reaches the database, then I call ApplyUpdates on the Dataset. This will generate an error (violation of unique constraint) in the provider and abort the applyupdates process, returning raAbort in the Action var of the ReconcileError method. In the ReconcileError method I tryied to use: Action := HandleReconcileError(aDataSet, UpdateKind, E); ** EDIT ** After debugging and dumping the DataSet records which were returned from the server, I noticed that there are 2 records in this Dataset, the first is the Old record and the second have all the changes I made to the first record. I'm a bit confused, will I always get this DataSet with 2 records? I thought that it should have only one record with the Old/New values. Thanks.

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• Send files using Content-Disposition: attachment in parallel

  - by Manos Dilaverakis

  I have a PHP page that sends a file to the browser depending on the request data it receives. getfile.php?get=something sends file A, getfile.php?get=somethingelse sends file B and so on and so forth. This is done like so: header('Content-Disposition: attachment; filename='. urlencode($filename)); readfile($fileURL); It works except it can only send one file at a time. Any other files requested are send in linear fashion. One starts as soon as another finishes. How can I get this to send files in parallel if the user requests another file while one is downloading?

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• Slow insert speed in Postgresql memory tablespace

  - by Prashant

  Hi, I have a requirement where I need to store the records at rate of 10,000 records/sec into a database (with indexing on a few fields). Number of columns in one record is 25. I am doing a batch insert of 100,000 records in one transaction block. To improve the insertion rate, I changed the tablespace from disk to RAM.With that I am able to achieve only 5,000 inserts per second. I have also done the following tuning in the postgres config: Indexes : no fsync : false logging : disabled Other information: - Tablespace : RAM - Number of columns in one row : 25 (mostly integers) - CPU : 4 core, 2.5 GHz - RAM : 48 GB I am wondering why a single insert query is taking around 0.2 msec on average when database is not writing anything on disk (as I am using RAM based tablespace). Is there something I am doing wrong? Help appreciated. Prashant

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• jQuery - cycle help

  - by MrTunes

  I'm looking to get some help on using the cycle library for jQuery. I'm in the beginner demos, and I got the absolute first one completed. This is the second one on the page. <script src="jquery-1.2.6.min.js" type="text/javascript"></script> <script src="jquery.cycle.all.min.js" type="text/javascript"></script> <script type="text/javascript"> $(document).ready(function() { $('.pics').cycle({ fx: 'scrollDown', speed: 300, timeout: 2000 }); </script> My CSS is identical to the one on the page, that's why I put .pics in the quotes.

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• BigDecimal serialization in GWT

  - by Domchi

  What is your preferred approach to serializing BigDecimal in GWT? Are there any clever workarounds, or do you simply use Double or String? Of all of the GWT pains this is so far the biggest; I'd hate to create two models, one for server and one for GWT, and transform data from one to the other. On the other hand, while I don't care much about using String instead of, say, javax.xml.datatype.Duration, I have to use BigDecimal on the server because of the calculations, which means either two models and conversion, or tons of tiny conversions to BigDecimal for every calculation.

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• Css editor with certain features

  - by user255408

  I need a light css editor with certain functions. Already downloaded and tried a few apps but still no luck, none of them fit my requirements. Actually, there is one, CssEdit (or TextMate), but unfortunately i'm a windows user... Already tried: built-in NetBeans IDE css editor (btw nice editor, the one i'm using now for css) IntelJ IDE (very good html and css editor, but using the entire ide just for this - that's crazy) ArduoCss (very buggy in win7 environment) Notepad Notepad++ (it rules, but as i said, i need something more functional for css editing) Style Master ( if i don't find anything else, probably i'll choose this one) Stylizer ( also might be my choice, but it's black interface kills me, also extremy noob-oriented, i even couldn't find a way to see the source code) Some of the features i am looking for: grouping by comments like here snippets autocomplete, if i type for instance f-s, it should recognize and expand it to "font-size" property color picker The editor must have at least the first feature that i listed above. Sorry for my poor english.

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• The handle is invalid when loading file or assembly AjaxControlToolkit

  - by Dharmik Bhandari

  I'm having one error repeatedly. The site is on ASP.NET 2.0 web form. There is no pattern to reproduce this error again because it occurs sometimes and it resolve by adding blank space at end of the in web.config. What could be the problem? Server Error in '/' Application. The handle is invalid. (Exception from HRESULT: 0x80070006 (E_HANDLE)) Exception Details: System.Runtime.InteropServices.COMException: The handle is invalid. (Exception from HRESULT: 0x80070006 (E_HANDLE)) [COMException (0x80070006): The handle is invalid. (Exception from HRESULT: 0x80070006 (E_HANDLE))] [FileLoadException: Could not load file or assembly 'AjaxControlToolkit, Version=3.0.30930.28736, Culture=neutral, PublicKeyToken=28f01b0e84b6d53e' or one of its dependencies. The handle is invalid. (Exception from HRESULT: 0x80070006 (E_HANDLE))] [ConfigurationErrorsException: Could not load file or assembly 'AjaxControlToolkit, Version=3.0.30930.28736, Culture=neutral, PublicKeyToken=28f01b0e84b6d53e' or one of its dependencies. The handle is invalid. (Exception from HRESULT: 0x80070006 (E_HANDLE))] System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +613

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• Serializing classes in C#. nested XML

  - by Jebli

  Hi All, I have to generate XML in the below format <objects> <items> <item ="delete"> <searchfields> <searchfield name="itemname" value="itemValue" /> </searchfields> </item> </items> </objects> So I have generated the CS file using xsd.exe by converting the above XML to XSD. xsd.exe -c -l:c# -n:XmlSerializationDeleteObject DeleteObject.xsd The CS file that is generated contains 4 classes. My question is i have to build the XML in the above mentioned format using the class that is generated. I am able to serialize the class files one by one which retirns one tag at a time, but i am unable to build it in the way that i mentioned above. Please help Regardas, jebli

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• Neural Network problems

  - by Betamoo

  I am using an external library for Artificial Neural Networks in my project.. While testing the ANN, It gave me output of all NaN (not a number in C#) The ANN has 8 input , 5 hidden , 5 hidden , 2 output, and all activation layers are of Linear type , and it uses back-propagation, with learning rate 0.65 I used one testcase for training { -2.2, 1.3, 0.4, 0.5, 0.1, 5, 3, -5 } ,{ -0.3, 0.2 } for 1000 epoch And I tested it on { 0.2, -0.2, 5.3, 0.4, 0.5, 0, 35, 0.0 } which gave { NaN , NaN} Note: this is one example of many that produces same case... I am trying to discover whether it is a bug in the library, or an illogical configuration.. The reasons I could think of for illogical configuration: All layers should not be linear Can not have descending size layers, i.e 8-5-5-2 is bad.. Only one testcase ? Values must be in range [0,1] or [-1,1] Is any of the above reasons could be the cause of error, or there are some constraints/rules that I do not know in ANN designing..? Note: I am newbie in ANN

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• Database Instance

  - by Sam

  I read a statement from an exercise: construct a database instance which conforms to diagram 1 but not to diagram 2. The diagrams are different n-ary relationships that have different relationships. Diagram 1 has a many to one to many to one relationship. Diagram 2 has many to many to many to one relationship. So, to really understand this problem, what does a database instance mean? Is it to make an example or abstract entities like a1, a2, or a3. Thanks for your time.

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• PHP + SQL Server or VB.NET + MySQL

  - by Muhammad Mussnoon

  Can someone suggest that out of the two mentioned (odd?) combinations, which is less odd, or in other words, is less trouble to work with + maintain. If it helps, the system is going to have two front-ends - one web application and one desktop application. The desktop application is going to be coded using VB.NET, and the web application in PHP. There's really no reason why the desktop application can't be replaced by a web application as well - except that one of the programmers seem to really want to code it in VB.... However, none of us have experience working with either of these pairs (you could easily call us n00bs), so we are a bit apprehensive to start. P.S. hosting service will be gotten from some provider and not be on the client's own server.

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• [AS2] Button Problem

  - by Adam Kiss

  problem hello, I have Button (with no name), which has a MovieClip child. this movie_clip called ax_kr has XX frames, each containing one image. Now, upon loading flash or frame containg this button (actually, 43 of them), I would like to tell to each button, that in your ax_kr MovieClip, load frame YY - first one would load frame 2, second frame 3, third frame 4 etc. etc. Or is there anyway to use one generic MovieClip/Button with that ax_kr MovieClip as child with frame xy as active and two more actions? (on RollOver, another MC on stage goes to frame xy (same as ax_kr has) and on Click, another MC on stage goes to frame xy (still the same number)) I did previously in as3 and find it quite okay, but now I have to enhance old as2 application and I feel like I should just kill myself.

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• jquery repeat process once get reply from php file

  - by air

  i have one php file which process adding of record in Database fro array. for example in array i have 5 items aray an='abc','xyz','ert','wer','oiu' i want to call one php file in j query ajax method um = an.split(','); var counter = 0; if(counter < uemail.length) { $("#sending_count").html("Processing Record "+ ecounter +" of " + an.length); var data = {uid: um[counter] $.ajax({ type: "POST", url: "save.php", data: data, success: function(html){ echo "added"; counter++; } what it do, it complete all the prcess but save.php is still working what i want after one process it stop untill process of save.php complete then it wait for next 10 sec and start adding of 2nd element. Thanks

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• Cannot combine commits using TortoiseGit

  - by JC

  I have two branches with several commits each. On one branch, I can go to the log, select two commits, and TortoiseGit shows "combine to one commit" in the context menu. On the other branch this option does not show in the context menu. Both sequence of commits is very similar; add file then modify it, so there is no difference really between the branches. What factors would cause this "combine to one commit" to not be available? I'm wondering if I should just switch to the command line.

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• jqueryui themeroller

  - by cf_PhillipSenn

  I'm learning about the Framework Icons in jQuery UI. <span class="ui-icon ui-icon-circle-minus"></span> produces an icon of a minus sign inside a circle. Using the ThemeRoller Firefox Bookmarklet, I was able to change the color of the icon to red (to make it look like a delete button). Q: How can I make one jQueryUI icon be red and another one another color? <span class="ui-icon ui-icon-circle-plus"></span> I'd like to make this one green.

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• Flex 3 "product store" example?

  - by Poni

  Hi! I'm looking for something like this: http://nwebb.co.uk/blog/?p=132 http://www.adobe.com/devnet/flex/samples/flex_store/ The first one doesn't provide the source code and the second one is for Flex 2, and I have no clue how to port it to Flex 3. At the second one Adobe writes: Minor changes in the description and code may be necessary before it can be applied to Flex 3. These guys are funny.......! Anyway does anyone here knows of something similar I can learn from? Thank you!

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• Normalize or Denormalize in high traffic websites

  - by Inam Jameel

  what is the best practice for database design for high traffic websites like this one stackoverflow? should one must use normalize database for record keeping or normalized technique or combination of both? is it sensible to design normalize database as main database for record keeping to reduce redundancy and at the same time maintain another denormalized form of database for fast searching? or main database should be denormalize and one can make normalized views in the application level for fast database operations? or beside above mentioned approach? what is the best practice of designing high traffic websites???

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