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How to use GROUP_CONCAT in a CONCAT in MySQL
... AS NAME
FROM test
GROUP BY ID, NAME
) AS A
GROUP BY ID;
SQL Fiddle: http://sqlfiddle.com/#!2/b5abe/9/0
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Why can't I inherit static classes?
I have several classes that do not really need any state. From the organizational point of view, I would like to put them into hierarchy.
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Response.Redirect with POST instead of Get?
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Doing this requires understanding how HTTP redirects work. When you use Response.Redirect(), you send a response (to the browser that made the request) with HTTP Status Code 302, which tells the browser where to go next. By definition, the browser will make tha...
CharSequence VS String in Java?
Programming in Android, most of the text values are expected in CharSequence .
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Get a pixel from HTML Canvas?
... index+4) // Returns subarray [R,G,B,A]
}
You can experiment with this on http://qry.me/xyscope/, the code for this is in the source, just copy/paste it in the console.
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Maven package/install without test (skip tests)
...backtick (`), like so..
mvn `-Dmaven.test.skip=true install
Reference: http://kuniganotas.wordpress.com/2011/08/12/invalid-task-test-skiptrue-you-must-specify-a-valid-lifecycle-phase/
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Is a Java string really immutable?
We all know that String is immutable in Java, but check the following code:
15 Answers
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Keyword for the outer class from an anonymous inner class [duplicate]
In the following snippet:
2 Answers
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C#: Difference between List and Collection (CA1002, Do not expose generic lists) [duplicate]
Tried to run Run Code Analysis on a project here, and got a number of warnings that said something like this:
2 Answers
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