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JOIN queries vs multiple queries

Are JOIN queries faster than several queries? (You run your main query, and then you run many other SELECTs based on the results from your main query) ...
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How do I remove background-image in css?

I have a general rule which gives all DIVs a background image. I have one div (with id='a') which I don't want it to have the background image. What css rule do I have to give it? ...
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How to set conditional breakpoints in Visual Studio?

Is there an easy way to set conditional breakpoints in Visual Studio? 13 Answers 13 ...
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Open a file with su/sudo inside Emacs

Suppose I want to open a file in an existing Emacs session using su or sudo , without dropping down to a shell and doing sudoedit or sudo emacs . One way to do this is ...
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Offset a background image from the right using CSS

Is there a way to position a background image a certain number of pixels from the right of its element? 17 Answers ...
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C++ auto keyword. Why is it magic?

From all the material I used to learn C++, auto has always been a weird storage duration specifier that didn't serve any purpose. But just recently, I encountered code that used it as a type name in and of itself. Out of curiosity I tried it, and it assumes the type of whatever I happen to assig...
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Struct inheritance in C++

Can a struct be inherited in C++? 6 Answers 6 ...
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How can I have Github on my own server?

Is there anything out there like Github that is for your own local server? I am curious if there is like a PHP script or even a desktop client that mimics Github's functionality, I love Github but it would be nice to host on my own server. ...
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Change the name of a key in dictionary

I want to change the key of an entry in a Python dictionary. 15 Answers 15 ...
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receiver type *** for instance message is a forward declaration

In my iOS5 app, I have NSObject States class, and trying to init it: 9 Answers 9 ...