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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 G...
How to RedirectToAction in ASP.NET MVC without losing request data
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edited Feb 7 '16 at 0:59
Markus Safar
5,60155 gold badges2323 silver badges4040 bronze badges
answ...
Perform Segue programmatically and pass parameters to the destination view
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107
The answer is simply that it makes no difference how the segue is triggered.
The prepareForSeg...
What is the right way to POST multipart/form-data using curl?
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edited May 20 '15 at 18:35
evandrix
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How to find the Number of CPU Cores via .NET/C#?
...erSystem").Get())
{
Console.WriteLine("Number Of Physical Processors: {0} ", item["NumberOfProcessors"]);
}
Cores:
int coreCount = 0;
foreach (var item in new System.Management.ManagementObjectSearcher("Select * from Win32_Processor").Get())
{
coreCount += int.Parse(item["NumberOfCores"]....
Generating all permutations of a given string
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607
public static void permutation(String str) {
permutation("", str);
}
private static void...
R - Markdown avoiding package loading messages
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edited Aug 7 '18 at 21:10
answered Oct 26 '12 at 16:35
Yi...
How can I reset a react component including all transitively reachable state?
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206
To ensure that the implicit browser state you mention and state of children is reset, you can a...
VIM ctrlp.vim plugin: how to rescan files?
...d before. What I did not like about Command-T is that it would take about 20-30 seconds to rescan files when it is invoked for the first time after starting vim.
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WPF text Wrap vs WrapWithOverflow
...brary/…
– blachniet
Aug 26 '12 at 0:17
3
I read this and am still not certain of the difference...