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Postgres: INSERT if does not exist already
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Postgres 9.5 (released since 2016-01-07) offers an "upsert" command, also known as an ON CONFLICT clause to INSERT:
INSERT ... ON C...
Can I use CASE statement in a JOIN condition?
The following image is a part of Microsoft SQL Server 2008 R2 System Views. From the image we can see that the relationship between sys.partitions and sys.allocation_units depends on the value of sys.allocation_units.type . So to join them together I would write something similar to this:
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How do I use prepared statements in SQlite in Android?
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I use prepared statements in Android all the time, it's quite simple :
SQLiteDatabase db = dbH...
Is there a way to make AngularJS load partials in the beginning and not at when needed?
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Yes, there are at least 2 solutions for this:
Use the script directive (http://docs.angularj...
C++: Rounding up to the nearest multiple of a number
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What is the standard exception to throw in Java for not supported/implemented operations?
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answered May 6 '09 at 11:24
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The order of keys in dictionaries
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You could use OrderedDict (requires Python 2.7) or higher.
Also, note that OrderedDict({'a': 1, 'b':2, 'c':3}) won't work since the dict you create with {...} has already forgotten the order of the elements. Instead, you want to use OrderedDict([('a', 1), ('b', 2), (...