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Computed / calculated / virtual / derived columns in PostgreSQL
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Up to Postgres 11 generated columns are not supported - as defined in the SQL standard and implemented by some RDBMS including DB2, MySQL and Oracle. Nor the similar "computed columns" of SQL Server.
STORED generated columns are introduced...
rails + MySQL on OSX: Library not loaded: libmysqlclient.18.dylib
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atejedaatejeda
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How to check if an object is an array?
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1117
In modern browsers you can do
Array.isArray(obj)
(Supported by Chrome 5, Firefox 4.0, IE 9...
OR is not supported with CASE Statement in SQL Server
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11 Answers
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Active
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Optional Parameters with C++ Macros
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answered Jan 11 '12 at 4:07
David SorkovskyDavid Sorkovsky
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How to implement an ordered, default dict? [duplicate]
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answered May 31 '11 at 16:16
zeekayzeekay
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Query for documents where array size is greater than 1
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Community♦
111 silver badge
answered Oct 18 '11 at 17:27
Andrew OrsichAndrew Orsich
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How to filter a dictionary according to an arbitrary condition function?
...t() is slower than the constructor/literal syntax {} doughellmann.com/2012/11/…
– dorvak
Jul 10 '13 at 9:37
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Is there any pythonic way to combine two dicts (adding values for keys that appear in both)?
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119
A more generic solution, which works for non-numeric values as well:
a = {'a': 'foo', 'b':'ba...
Failed to load the JNI shared Library (JDK)
...cher used (e.g. org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.100.v20110502)
– Steve Oh
Jun 6 '13 at 9:16
I had ...