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SQL Server IN vs. EXISTS Performance

... 9 Answers 9 Active ...
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Eclipse - java.lang.ClassNotFoundException

When trying to start my JUnit-Test out of Eclipse, I get a "ClassNotFoundException". When running "mvn test" from console - everything works fine. Also, there are no problems reported in Eclipse. ...
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How to run a program without an operating system?

How do you run a program all by itself without an operating system running? Can you create assembly programs that the computer can load and run at startup, e.g. boot the computer from a flash drive and it runs the program that is on the CPU? ...
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Uncaught ReferenceError: $ is not defined?

How come this code throws an 39 Answers 39 ...
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How do lexical closures work?

While I was investigating a problem I had with lexical closures in Javascript code, I came along this problem in Python: 9 ...
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Changing Java Date one hour back

I have a Java date object: 10 Answers 10 ...
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Rails :include vs. :joins

This is more of a "why do things work this way" question rather than a "I don't know how to do this" question... 8 Answers ...
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Android SDK installation doesn't find JDK

I'm trying to install the Android SDK on my Windows 7 x64 System. 45 Answers 45 ...
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Ruby optional parameters

If I define a Ruby functions like this: 8 Answers 8 ...
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Best way to define error codes/strings in Java?

I am writing a web service in Java, and I am trying to figure out the best way to define error codes and their associated error strings . I need to have a numerical error code and an error string grouped together. Both the error code and error string will be sent to the client accessing the web ser...