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MySQL how to join tables on two fields
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JOIN t2 ON t1.id=t2.id AND t1.date=t2.date
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How to check if a database exists in SQL Server?
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From a Microsoft's script:
DECLARE @dbname nvarchar(128)
SET @dbname = N'Senna'
IF (EXISTS (SELECT name
FROM master.dbo.sysdatabases
WHERE ('[' + name + ']' = @dbname
OR name = @dbname)))
-- code mine :)
PRINT 'db exists'
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How can I tell PyCharm what type a parameter is expected to be?
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See also reStructuredText and docstring conventions (PEP 257).
Another option is Python 3 annotations.
Please refer to the PyCharm documentation section for more details and samples.
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Correct way to use get_or_create?
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From the documentation get_or_create:
# get_or_create() a person with similar first names.
p, ...
GDB corrupted stack frame - How to debug?
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Those bogus adresses (0x00000002 and the like) are actually PC values, not SP values. Now, when you get this kind of SEGV, with a bogus (very small) PC address, 99% of the time it's due to calling through a bogus function pointer. Note that virtual calls...
JQuery find first parent element with specific class prefix
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jQuery clone() not cloning event bindings, even with on()
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How to view the Folder and Files in GAC?
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answered Feb 29 '12 at 11:28
sllsll
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Measure time in Linux - time vs clock vs getrusage vs clock_gettime vs gettimeofday vs timespec_get?
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Ignore Xcode warnings when using Cocoapods
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answered Nov 3 '12 at 12:11
alloyalloy
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