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What is the difference between user variables and system variables?

... user541686user541686 183k107107 gold badges458458 silver badges806806 bronze badges ...
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How to 'bulk update' with Django?

... 27 Note also that as a consequence of not using save(), DateTimeField fields with auto_now=True ("modified" columns) won't be updated. ...
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How do I interpret precision and scale of a number in a database?

...to the maximum number of digits that are present in the number. ie 1234567.89 has a precision of 9 Numeric scale refers to the maximum number of decimal places ie 123456.789 has a scale of 3 Thus the maximum allowed value for decimal(5,2) is 999.99 ...
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How to check if a value exists in a dictionary (python)

... timing: >>> T(lambda : 'one' in d.itervalues()).repeat() [0.28107285499572754, 0.29107213020324707, 0.27941107749938965] >>> T(lambda : 'one' in d.values()).repeat() [0.38303399085998535, 0.37257885932922363, 0.37096405029296875] >>> T(lambda : 'one' in d.viewvalues()).r...
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What is the >>>= operator in C?

... | edited May 23 '17 at 11:54 Community♦ 111 silver badge answered Aug 25 '14 at 22:17 ...
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CSS Selector for

... 157 Yes. IE7+ supports attribute selectors: input[type=radio] input[type^=ra] input[type*=d] input[...
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CMake: Project structure with unit tests

... | edited May 23 '17 at 12:18 Community♦ 111 silver badge answered Jan 21 '13 at 21:42 ...
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multiprocessing.Pool: When to use apply, apply_async or map?

...you would use apply: apply(f,args,kwargs) apply still exists in Python2.7 though not in Python3, and is generally not used anymore. Nowadays, f(*args,**kwargs) is preferred. The multiprocessing.Pool modules tries to provide a similar interface. Pool.apply is like Python apply, except that th...
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What is the 'CLSCompliant' attribute in .NET?

... Yousha Aleayoub 2,59722 gold badges4040 silver badges5555 bronze badges answered Feb 20 '09 at 17:18 Otávio DécioOtávi...
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Calling a class function inside of __init__

... | edited Aug 8 '17 at 4:53 Azat Ibrakov 6,27088 gold badges2929 silver badges3838 bronze badges ...