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What do Clustered and Non clustered index actually mean?
...pplication programmer. I want to know about Clustered and Non clustered indexes .
I googled and what I found was :
11 An...
How to do something to each file in a directory with a batch script
How do you iterate over each file in a directory with a .bat or .cmd file?
6 Answers
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mmap() vs. reading blocks
I'm working on a program that will be processing files that could potentially be 100GB or more in size. The files contain sets of variable length records. I've got a first implementation up and running and am now looking towards improving performance, particularly at doing I/O more efficiently since...
Efficient way to return a std::vector in c++
How much data is copied, when returning a std::vector in a function and how big an optimization will it be to place the std::vector in free-store (on the heap) and return a pointer instead i.e. is:
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How does an underscore in front of a variable in a cocoa objective-c class work?
I've seen in a few iPhone examples that attributes have used an underscore _ in front of the variable. Does anyone know what this means? Or how it works?
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Checking if a key exists in a JS object
I have the following JavaScript object:
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How to avoid reverse engineering of an APK file?
I am developing a payment processing app for Android, and I want to prevent a hacker from accessing any resources, assets or source code from the APK file.
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What does the ??!??! operator do in C?
I saw a line of C that looked like this:
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How do I get the current time zone of MySQL?
Anyone knows if there is such a function in MySQL?
17 Answers
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Does PHP have threading?
...his PECL package called threads , but there is not a release yet. And nothing is coming up on the PHP website.
13 Answers
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