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Check if a Postgres JSON array contains a string
...ch rabbit likes two foods and 10% of them like carrots:
d=# -- Postgres 9.3 solution
d=# explain analyze select info->>'name' from rabbits where exists (
d(# select 1 from json_array_elements(info->'food') as food
d(# where food::text = '"carrots"'
d(# );
Execution time: 3084.927 ms
d=...
SQLAlchemy: print the actual query
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Ilja Everilä
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answered May 23 '14 at 18:05
zzzeekzzzeek
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Function to return only alpha-numeric characters from string?
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How to render an ASP.NET MVC view as a string?
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edited May 12 '15 at 12:38
community wiki
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When do I really need to use atomic instead of bool? [duplicate]
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answered May 1 '13 at 15:23
Kerrek SBKerrek SB
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Replace a newline in TSQL
...hem all, you need something like this:
SELECT REPLACE(REPLACE(@str, CHAR(13), ''), CHAR(10), '')
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Is an empty href valid?
...s. An empty string may be a URI reference.
HTML 4.01
HTML 4.01 uses RFC 2396, where it says in section 4.2. Same-document References (bold emphasis mine):
A URI reference that does not contain a URI is a reference to the current document. In other words, an empty URI reference within a docume...
C++ Singleton design pattern
... // Constructor? (the {} brackets) are needed here.
// C++ 03
// ========
// Don't forget to declare these two. You want to make sure they
// are inaccessible(especially from outside), otherwise, you may accidentally get copies of
// your singleton appe...
What is ViewModel in MVC?
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A view model represents the data that you want to display on your view/page, whether it be used ...
Flattening a shallow list in Python [duplicate]
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