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EC2 Can't resize volume after increasing size

... Thank you Wilman your commands worked correctly, small improvement need to be considered if we are increasing EBSs into larger sizes Stop the instance Create a snapshot from the volume Create a new volume based on the snapshot increasing the size Ch...
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Are PDO prepared statements sufficient to prevent SQL injection?

...erver's expecting on the connection both to encode ' as in ASCII i.e. 0x27 and to have some character whose final byte is an ASCII \ i.e. 0x5c. As it turns out, there are 5 such encodings supported in MySQL 5.6 by default: big5, cp932, gb2312, gbk and sjis. We'll select gbk here. Now, it's very i...
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Why is null an object and what's the difference between null and undefined?

...n short; undefined is where no notion of the thing exists; it has no type, and it's never been referenced before in that scope; null is where the thing is known to exist, but it's not known what the value is. One thing to remember is that null is not, conceptually, the same as false or "" or such, e...
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Modulo operation with negative numbers

... Should the compiler be smart enough and detect that an unsigned modulo another unsigned is always positive? Currently (well, GCC 5.2) the compiler seems to think that "%" returns an "int" in this case, rather than "unsigned" even when both operands are uint32_...
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What happens when a duplicate key is put into a HashMap?

...e times to HashMap ’s put method, what happens to the original value? And what if even the value repeats? I didn’t find any documentation on this. ...
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Python: List vs Dict for look up table

...f you don't need to associate values, use sets. Memory Both dictionaries and sets use hashing and they use much more memory than only for object storage. According to A.M. Kuchling in Beautiful Code, the implementation tries to keep the hash 2/3 full, so you might waste quite some memory. If you...
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How to remove files and directories quickly via terminal (bash shell) [closed]

... +1 and glad you added the "Be careful!" part... definitely a "Sawzall" command that can quickly turn a good day into a bad one.. if wielded carelessly. – itsmatt Apr 15 '10 at 1:30 ...
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REST API - why use PUT DELETE POST GET?

So, I was looking through some articles on creating REST API's. And some of them suggest using all types of HTTP requests: like PUT DELETE POST GET . We would create for example index.php and write API this way: ...
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Is there any way to create a blank solution (.sln) file first and then add projects?

...ys annoyed me because (to my knowledge) you cannot create a solution first and then add new/existing projects to it. The only way I know how to create a solution is to create a project and specify the solution name for it. ...
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How do I connect to this localhost from another computer on the same network?

I'm currently working on a project and I would like to test it out on two laptops at home where one laptop connects to the localhost on the other. I am using XAMPP. How do I do this? ...