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How to count occurrences of a column value efficiently in SQL?

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What is the >>>= operator in C?

...y a colleague as a puzzle, I cannot figure out how this C program actually compiles and runs. What is this >>>= operator and the strange 1P1 literal? I have tested in Clang and GCC. There are no warnings and the output is "???" ...
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Random row selection in Pandas dataframe

..., and you should use .loc for label based indexing – compguy24 Feb 27 '19 at 17:04 add a comment  |  ...
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Local variables in nested functions

...om the parent scope when executed, not when defined. The function body is compiled, and the 'free' variables (not defined in the function itself by assignment), are verified, then bound as closure cells to the function, with the code using an index to reference each cell. pet_function thus has one ...
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Composer: how can I install another dependency without updating old ones?

...one, but I'd like to keep the others the way they are. So I've edited the composer.json , but if I run composer install , I get the following output: ...
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LINQ where vs takewhile

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Warning as error - How to rid these

...igure out how to get rid of errors that basically should not be halting my compile in Visual Studio 2010 and should not be show stoppers, or at least I will fix them later, but I don't want the compile to just error and halt on these kinds of problems. ...
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.NET NewtonSoft JSON deserialize map to a different property name

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Choice between vector::resize() and vector::reserve()

...ant to avoid a couple of allocations, use reserve(). EDIT: Blastfurnace's comment made me read the question again and realize, that in your case the correct answer is don't preallocate manually. Just keep inserting the elements at the end as you need. The vector will automatically reallocate as nee...
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jQuery changing style of HTML element

...lor: "#fff"}) - PS i hate double quotes but they are easier to see in this comment – danday74 May 9 '19 at 1:36 add a comment  |  ...