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SQL join on multiple columns in same tables
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Join like this:
ON a.userid = b.sourceid AND a.listid = b.destinationid;
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How to compile a static library in Linux?
...e into a file named out.a. Is it sufficient to simply compile with the command gcc -o out.a out.c ? I'm not quite familiar with gcc , hope anyone can give me a hand.
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Easiest way to read from and write to files
There are a lot of different ways to read and write files ( text files , not binary) in C#.
12 Answers
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How to validate a url in Python? (Malformed or not)
I have url from the user and I have to reply with the fetched HTML.
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Are booleans as method arguments unacceptable? [closed]
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Although in this case I'd maybe rather have turnLightOn() and turnLightOff(), depending on the situation.
– skaffman
Sep 25 '08 at 20:50
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Example: Communication between Activity and Service using Messaging
I couldn't find any examples of how to send messages between an activity and a service, and I have spent far too many hours figuring this out. Here is an example project for others to reference.
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Why is Double.MIN_VALUE in not negative
... actually the minimum value that Doubles can take? It is a positive value, and a Double can of course be negative.
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How do I position one image on top of another in HTML?
... tight in the corner). I am trying to avoid compositing (with ImageMagick and similar) due to performance issues.
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Asynchronous vs synchronous execution, what does it really mean? [closed]
What is the difference between asynchronous and synchronous execution?
22 Answers
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Submit HTML form on self page
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I used <?php $_PHP_SELF ?> and got the error that action cannot be blank, i guess ill just leave it off
– Drewdin
Feb 18 '15 at 12:04
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