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• url Query and Security

  - by jasmine

  In url query with id I use is_numeric($_GET['id']) for security issues. But in query with for example category name, is urlencode() a right way for security? Thanks in advance.

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• Which use cases make temporary JMS queues a better choice than persistent queues?

  - by Stephen Harmon

  When you are designing a JMS application, which use cases make you pick temporary queues over persistent queues? We use temporary queues for response messages. We're having some issues maintaining connections to the temp queues, though, so I am testing persistent response queues, instead. One clear disadvantage of persistent queues is that your application has to "know" about them beforehand. If that's not a big deal, though, are there use cases where temp queues are the obvious choice?

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• OpenMP implementations in VC++ 2008, 2010

  - by John

  Depending on implementation, OMP can be quite useful to parallelize fairly arbitrary bits of code - e.g a parallel section inside a method that calls two independent methods - or it can be bad. It depends on how threads are created/cached, I think. How does the VC++ 2008 implementation work? And is the 2010 implementation significantly different in terms of features and performance/flexibility?

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• how to detect javascript features on Android 1.5

  - by Sirber

  I'm trying to write a code that can run on Android 1.5 and 2.0.1, but I have issues with the javascript engine used on Android 1.5. alert(localStorage); just hang on v1.5 while on v2.0.1 it alerts correctly. is there an unblocking way to do it or to detect the version of Android with javascript?

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• OpenCL or CUDA Which way to go?

  - by holydiver

  I'm investigating ways of using GPU in order to process streaming data. I had two choices but couldn't decide which way to go? My criterias are as below: Ease of use.(good API) Community and Documentation. Performance Future I'll code in C and C++.

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• SQL Server Update Group by

  - by Gerardo Abdo

  I'm trying to execute this on MS-SQL but returns me an error just at the Group by line update #temp Set Dos=Count(1) From Temp_Table2010 s where Id=s.Total and s.total in (Select Id from #temp) group by s.Total Do anyone knows how can I solve this problem having good performance.

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• A good alternative to crystal reports over the internet

  - by Paul

  I have so many problems with using crystal reports over the internet. I admit that the web viewer looks good and the reports you can produce with it are really good but... I have issues with diffrent versions on diffrent servers The development tools are worse than access I dont understand it. Does anyone have any good alternatives for displaying and outputting reports over the web?

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• Trigger action when element is clicked but not when some specific subelements are.

  - by Anant

  I have a div, containing text and a few links. I want to trigger an onclick event, only if the click occurs anywhere in the div, but not on any of the links. What would be the best way (performance wise) to implement this using jQuery? The one I use is $('#div').click(function(){ }); but it disables all the #div a

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• Objects of the same name in base and derived class not getting flagged as an error

  - by John Smith

  class Base { public: type1 m_Pants; }; class Derived : Base { public: type2 m_Pants }; This essentially didn't get flagged as an error, but was creating all kinds of clobbering and issues throughout a project. Does anyone know of a technicality that wouldn't flag this?

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• JQuery Facebox Plugin : Get it inside the form tag

  - by Kevin Sheffield

  I am wanting to use the Facebox plugin for JQuery but am having a few issues getting it running how I want. The div that houses the facebox content is created outside of the tag so even though I am loading up some web controls none of them are firing back to the server. Has anyone dealt with this that can give me some pointers?

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• Rails callback for the equivalent of "after_new"

  - by Joe Cairns

  Right now I cant find a way to generate a callback between lines 1 and 2 here: f = Foo.new f.some_call f.save! Is there any way to simulate what would be effectively an after_new callback? Right now I'm using after_initialize but there are potential performance problems with using that since it fires for a lot of different events.

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• how to delete lowercase words from a string in python

  - by gaggina

  I'm new in python and I'm having some issues doing a simple thing. I've an array (or list as it's said in pyton) like this: list = [ 'NICE dog' , 'blue FLOWER' , 'GOOD cat' , 'YELLOW caw'] As you see each element of this array contains some words. These words is both lowercase and uppercase. How I can delete from this array each lowercase words? For example I'd like to have as result this list: list = [ 'NICE' , 'FLOWER' , 'GOOD' , 'YELLOW']

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• Best way to display a background with a pattern in an iPhone/iPad app

  - by Dr Dork

  Here's an example of the type of background image I'm talking about... Clearly, there's a pattern in it. My question is, if this were an iPad app and the background image was twice the size, would there be any significant benefits to taking advantage of this pattern by tiling the image? Or would it really make no difference in terms of performance and just be easier to load the entire image into a UIImageView? Thanks in advance for all your wisdom!

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• Is ArrayList.size() method cached?

  - by Peterdk

  I was wondering, is the size() method that you can call on a existing ArrayList<T> cached? Or is it preferable in performance critical code that I just store the size() in a local int? I would expect that it is indeed cached, when you don't add/remove items between calls to size(). Am I right?

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• What was the most refreshingly honest non-technical comment you saw in the code?

  - by DVK

  OK, so we all saw the lists of "funny" or "bad" comments. However, today, when maintaining an old stored proc, I stumbled upon a comment which I couldn't classify other than "refreshingly brutally honest", left by a previous maintainer around a really freakish (both performance and readability-wise) page-long query: -- Feel free to optimize this if you can understand what it means So, in the first (and hopefully only) poll type question in my history of Stack Overflow, I'd like to hear some other "refreshingly brutally honest" code comments you encountered or written.

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• Managing conflicting ivy repositories (in eclipse)

  - by Stephen

  I've got eclipse workspaces for my full time job and my home test work that are both set up with ivy (and using ivyDE). However, I'm finding that I'm getting strange behaviour and conflicts between the different workspaces - issues like not being able to find certain dependencies, or not compiling etc. Is there a way in ivy or ivyDE to set the home .ivy2 directory so that I can split my workspaces? At the moment, I'm alternating different directories for my .ivy2 cache.

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• Disable VB.NET 10 Features in VS 2010

  - by Keivan

  is there a way to disable visual basic 10 language features in VS 2010. our Dev team has moved to Visual studio 2010, but we still have to keep backwards compatibility with Visual Studio 2008. is there a way to disable the new language features to avoid any issues.

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• PNG transparency of backgrounds to submit buttons or inputs of type image

  - by pokearood

  Hi bit of a silly question. Are there any png transparency issues with backgrounds to submit buttons or inputs of type image? Or do they behave fine just like img tags with a png image as the source. I understand for IE6 you need a hack for png transparency to work.

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• Does the number of rows in mysql table matter?

  - by 1s2a3n4j5e6e7v

  I'm coming up with a web app which will want me to store more than 80 Lakh (8 million) rows. Will it be fine to handle those many number of rows with MySQL without having any performance degradation? Assume my RAM to be 4 GB and Infinity GB Harddisk space. Also, the main fields have been indexed.

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• '/usr/lib/mozilla/plugins/npPluginTest.so' is not an ELF executable for sh

  - by rakesh nair

  I have created NPAPI plugin, which is workig fine on linux where I have created the .so file but when I deployed this plugin on our production device where we have linux environment with limited resources(due to performance constraints) , following error is thrown '/usr/lib/mozilla/plugins/npPluginTest.so' is not an ELF executable for sh FYI:so file created on 32bit linux box. how can I resolve this issue?

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• Saving private data

  - by rajatgoel

  Hi, Can anybody detail some approach on how to save private data in social websites like facebook, etc. They cant save all the updates and friends list in clear text format because of privacy issues. So how do they actually save it? Hashing all the data with user password so that only a valid session view it is one possibility. But I think there are some problem with this approach and there must be some better solution.

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• RTTI and Portability in C++

  - by Joshua

  If a compiler doesn't "support" RTTI, does that mean that the compiler can not handle class hierarchies that have virtual functions in them? Or have I been misunderstanding the literature about how RTTI isn't portable, and the issues lie elsewhere?

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• Using Selenium IDE with random values

  - by Toby Hede

  Is it possible to create Selenium tests using the Firefox plugin that use randomly generated values to help do regression tests? The full story: I would like to help my clients do acceptance testing by providing them with a suite of tests that use some smarts to create random (or at least pseudo-random) values for the database. One of the issues with my Selenium IDE tests at the moment is that they have predefined values - which makes some types of testing problematic.

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• Playing .swf file in MediaPlayer?

  - by Omar

  I'm having some issues in playing .swf files on my application. On my PC, using Media Player Classic, they work normally, but on my phone they dont, all I hear is weird sounds.. the code I use to play: mediaplayer = MediaPlayer.create(getBaseContext(), Uri.parse(CurrentAyaSoundPath)); Can anyone tell me why I cant play .swf files normally? Is there another way to play them? Edit1: the .swf are sound only.. no video

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• Investment advice data dump analysis

  - by portoalet

  For my year-end pet project, I'd like to analyze investment advices and their correlation to the stock market performance. The problem is, where do I get the dump of investment advice data (free) ? something like stackoverflow.com data dump will be nice. Or maybe it's easier to do distributed crawling and crawl the public finance webpages for investment advices? Investment advice is buy/sell advice for stocks/forex, issued by institution/investment advisor.

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