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PostgreSQL query to return results as a comma separated list
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209
SELECT string_agg(id::text, ',') FROM table
Requires PostgreSQL 9.0 but that's not a problem.
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os.path.dirname(__file__) returns empty
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answered Oct 16 '11 at 9:06
Sven MarnachSven Marnach
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How can you detect the version of a browser?
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508
You can see what the browser says, and use that information for logging or testing multiple bro...
How can I download HTML source in C#
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edited May 30 '18 at 10:37
Hakan Fıstık
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Reliable timer in a console application
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edited Dec 24 '19 at 10:19
Kolappan N
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answer...
Restrict varchar() column to specific values?
...cify, for example 4 distinct values for a varchar column in MS SQL Server 2008?
4 Answers
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How do I create a pylintrc file
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sthenaultsthenault
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What's the difference of $host and $http_host in Nginx
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220
$host is a variable of the Core module.
$host
This variable is equal to line Host in the head...
How to find largest objects in a SQL Server database?
...ages,
sum(a.data_pages) as DataPages,
(sum(a.total_pages) * 8) / 1024 as TotalSpaceMB,
(sum(a.used_pages) * 8) / 1024 as UsedSpaceMB,
(sum(a.data_pages) * 8) / 1024 as DataSpaceMB
FROM
sys.tables t
INNER JOIN
sys.indexes i ON t.object_id = i.object_id
INNER JOIN
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isset() and empty() - what to use
...mpty checks if the variable is set and if it is it checks it for null, "", 0, etc
Isset just checks if is it set, it could be anything not null
With empty, the following things are considered empty:
"" (an empty string)
0 (0 as an integer)
0.0 (0 as a float)
"0" (0 as a string)
NULL
FALSE
array(...