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Ruby/Rails: converting a Date to a UNIX timestamp
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How do you stop Console from popping up automatically in Eclipse
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Matt Ball
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answered Dec 16 '10 at 15:44
Jeff StoreyJeff ...
Create table in SQLite only if it doesn't exist already
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answered Nov 4 '10 at 15:06
David WoleverDavid Wolever
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How do I typedef a function pointer with the C++11 using syntax?
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What are the complexity guarantees of the standard containers?
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edited Dec 20 '15 at 12:11
Peter Mortensen
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How do I make a simple makefile for gcc on Linux?
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How to do version numbers? [closed]
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259
[major].[minor].[release].[build]
major: Really a marketing decision. Are you ready to call th...
How to style CSS role
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answered Oct 15 '12 at 9:27
syncsync
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Postgresql aggregate array
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Use array_agg: http://www.sqlfiddle.com/#!1/5099e/1
SELECT s.name, array_agg(g.Mark) as marks
FROM student s
LEFT JOIN Grade g ON g.Student_id = s.Id
GROUP BY s.Id
By the way, if you are using Postgres 9.1, you don't need to repeat the columns on SELECT to ...