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nullable object must have a value
... resolved my problem, i just change null able object to non null able, and convert datetime to string directly, not by datetimeobject.value.datetime.tostring()
– adnan
Dec 28 '16 at 12:41
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Convert text into number in MySQL query
Is it possible to convert text into number within MySQL query? I have a column with an identifier that consists a name and a number in the format of "name-number". The column has VARCHAR type. I want to sort the rows according the number (rows with the same name) but the column is sorted according d...
Import module from subfolder
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There's no need to mess with your PYTHONPATH or sys.path here.
To properly use absolute imports in a package you should include the "root" packagename as well, e.g.:
from dirFoo.dirFoo1.foo1 import Foo1
from dirFoo.dirFoo2.foo2 import Foo2
Or you can use relative impor...
Java equivalent of unsigned long long?
...gs (what "wrapping integer" types are). Any size number should implicitly convert to any size ring, but rings should only convert to numbers via function or via explicit typecast to the same size number. The behavior of C, where unsigned types generally behave as algebraic rings but sometimes beha...
How should I log while using multiprocessing in Python?
...his logger has process-shared locks so that you don't garble things up in sys.stderr (or whatever filehandle) by having multiple processes writing to it simultaneously.
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How to get the unix timestamp in C#
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Error for the second solution: Cannot convert source type 'double' to target type 'long'.
– Pixar
Sep 4 '15 at 15:45
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How can I time a code segment for testing performance with Pythons timeit?
...the connection. Once you have your code working correctly is the correct point at which to think about using timeit on it!
Specifically, if the function you want to time is a parameter-less one called foobar you can use timeit.timeit (2.6 or later -- it's more complicated in 2.5 and before):
timei...
Where is the itoa function in Linux?
itoa() is a really handy function to convert a number to a string. Linux does not seem to have itoa() , is there an equivalent function or do I have to use sprintf(str, "%d", num) ?
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How can I reliably get an object's address when operator& is overloaded?
...ent and returning no result. This reference to a function can be trivially converted into a pointer to function -- from @Konstantin: According to 13.3.3.2 both T & and T * are indistinguishable for functions. The 1st one is an Identity conversion and the 2nd one is Function-to-Pointer conversion...
Is it better practice to use String.format over string Concatenation in Java?
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@AmirRaminar: The compiler converts "+" to calls to StringBuilder automatically.
– Martin Schröder
Feb 23 '12 at 14:50
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