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Correct format specifier for double in printf
...ss a float to printf, it'll be promoted to double before printf receives it1. "%lf" is also acceptable under the current standard -- the l is specified as having no effect if followed by the f conversion specifier (among others).
Note that this is one place that printf format strings differ substan...
Tools to generate database tables diagram with Postgresql? [closed]
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I love schemaspy for schema visualisations. Look at the sample output they provide, and drool....
Where to place private methods in Ruby?
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TypeError: 'str' does not support the buffer interface
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edited Oct 5 '15 at 0:03
bignose
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How to make sure that string is valid JSON using JSON.NET
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How to get the last N records in mongodb?
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Error when deploying an artifact in Nexus
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How to combine two strings together in PHP?
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Concatenate multiple result rows of one column into one, group by another column [duplicate]
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SELECT movie, string_agg(actor, ', ') AS actor_list
FROM tbl
GROUP BY 1;
The 1 in GROUP BY 1 is a positional reference and a shortcut for GROUP BY movie in this case.
string_agg() expects data type text as input. Other types need to be cast explicitly (actor::text) - unless an implicit cast ...
Fastest method to replace all instances of a character in a string [duplicate]
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