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MySql Table Insert if not exist otherwise update
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now I defined the datenum as unique, and it's work fine, thanks
– OHLÁLÁ
May 18 '11 at 8:21
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Undoing accidental git stash pop
...at are proving hard to track down. I ran git stash show , so I at least know which files were changed. If nothing else, I guess this is a lesson to commit more.
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Advantages of std::for_each over for loop
...);
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This kind of syntax has been available in Java and C# for some time now, and actually there are way more foreach loops than classical for loops in every recent Java or C# code I saw.
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What Java ORM do you prefer, and why? [closed]
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I agree. I've been using ORM over 3 years now, and i cannot tell how much time was wasted (still is) to resolve persistence related issues. We have no control whatsoever about what is happening "under the hood", configurations are too many to be managed efficiently a...
Why should I not wrap every block in “try”-“catch”?
...xactly you will do once you've caught the exception and only catch if you know.
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How do you copy the contents of an array to a std::vector in C++ without looping?
... of the program that I need to store for later processing. Since I don't know how many times my function will be called before it is time to process the data, I need a dynamic storage structure, so I chose a std::vector . I don't want to have to do the standard loop to push_back all the values ...
How to extract text from a string using sed?
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I tried sed -n '/[0-9]\+G[0-9]\+/p'. Now it just prints the whole string
– RanRag
Jul 19 '12 at 20:43
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Reading InputStream as UTF-8
...a text/plain file over the internet, line-by-line. The code I have right now is:
3 Answers
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in iPhone App How to detect the screen resolution of the device
...ices will give a 2.0f and the iPhone 6 Plus (Retina HD) will give a 3.0f.
Now if you want to get the pixel width & height of the iOS device screen you just need to do one simple thing.
CGSize screenSize = CGSizeMake(screenBounds.size.width * screenScale, screenBounds.size.height * screenScale)...
Using Rails 3.1, where do you put your “page specific” JavaScript code?
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+1 This is great to know for a newbie like me. I'd give it +2 if I could.
– jrhorn424
Mar 17 '12 at 22:16
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