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How do I check if a Sql server string is null or empty
I want to check for data, but ignore it if it's null or empty. Currently the query is as follows...
18 Answers
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SQL Server Management Studio won't let me add an index to a table
When I right click on the indexes folder in the table the "New Index" menu item is grayed out. I don't understand why. I've deleted all data in the table just in case, and refreshed and restarted SSMS, but no luck. I'm using SQL Server 2012 Business Intelligence SP1 CTP.
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Handle spring security authentication exceptions with @ExceptionHandler
I'm using Spring MVC's @ControllerAdvice and @ExceptionHandler to handle all the exception of a REST Api. It works fine for exceptions thrown by web mvc controllers but it does not work for exceptions thrown by spring security custom filters because they run before the controller methods are inv...
How to change the ROOT application?
I'm trying to change the default application of a Tomcat 6 webserver to a different application than "ROOT" (inside webapps folder). What is the best way to do this?
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Spring MVC: How to return image in @ResponseBody?
I'm getting image data (as byte[] ) from DB. How to return this image in @ResponseBody ?
14 Answers
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Python Anaconda - How to Safely Uninstall
I installed Python Anaconda on Mac (OS Mavericks). I wanted to revert to the default version of Python on my Mac. What's the best way to do this? Should I delete the ~/anaconda directory? Any other changes required?
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Are C++ enums signed or unsigned?
Are C++ enums signed or unsigned? And by extension is it safe to validate an input by checking that it is = your min value (assuming you started at 0 and incremented by 1)?
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What's the difference between ConcurrentHashMap and Collections.synchronizedMap(Map)?
I have a Map which is to be modified by several threads concurrently.
19 Answers
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How do I move a file with Ruby?
I want to move a file with Ruby. How do I do that?
6 Answers
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Auto reloading a Sails.js app on code changes?
Currently is seems that for any code change in a sails.js app you have to manually stop the sails server and run sails lift again before you can see the changes.
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