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MySQL foreign key constraints, cascade delete

... | edited Sep 20 '16 at 1:01 Drew 23.7k99 gold badges3737 silver badges6868 bronze badges ans...
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Convert object to JSON in Android

... | edited Mar 24 at 6:02 Akshay 2,43233 gold badges3232 silver badges5050 bronze badges answered Apr...
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I want to copy table contained from one database and insert onto another database table

... works if the databases are on the same server. – zgr024 May 11 '17 at 19:08 add a comment  |  ...
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Increase distance between text and title on the y-axis

... From ggplot2 2.0.0 you can use the margin = argument of element_text() to change the distance between the axis title and the numbers. Set the values of the margin on top, right, bottom, and left side of the element. ggplot(mpg, aes(cty, hw...
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Retrieve list of tasks in a queue in Celery

... 180 EDIT: See other answers for getting a list of tasks in the queue. You should look here: Celery ...
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Is it better to use std::memcpy() or std::copy() in terms to performance?

... 5 strings using all four SHA-2 versions (224, 256, 384, 512), and I loop 300 times. I measure times using Boost.timer. That 300 loop counter is enough to completely stabilize my results. I ran the test 5 times each, alternating between the memcpy version and the std::copy version. My code takes adv...
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How to pass an ArrayList to a varargs method parameter?

...toArray(new WorldLocation[locations.size()])) (toArray(new WorldLocation[0]) also works, but you would allocate a zero length array for no reason.) Here's a complete example: public static void method(String... strs) { for (String s : strs) System.out.println(s); } ... List&lt...
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do { … } while (0) — what is it good for? [duplicate]

I've been seeing that expression for over 10 years now. I've been trying to think what it's good for. Since I see it mostly in #defines, I assume it's good for inner scope variable declaration and for using breaks (instead of gotos.) ...
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What is the lifetime of a static variable in a C++ function?

... The lifetime of function static variables begins the first time[0] the program flow encounters the declaration and it ends at program termination. This means that the run-time must perform some book keeping in order to destruct it only if it was actually constructed. Additionally, since t...
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How can I find out if I have Xcode commandline tools installed?

... Danh 5,27977 gold badges2525 silver badges4040 bronze badges answered Nov 4 '16 at 5:45 crujzocrujzo 1,81411 gold badge10...