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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 ...
What is the difference between precision and scale?
...n 4, scale 2: 99.99
Precision 10, scale 0: 9999999999
Precision 8, scale 3: 99999.999
Precision 5, scale -3: 99999000
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Unresolved specs during Gem::Specification.reset:
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edited Oct 17 '17 at 3:58
EricC
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answered Aug 8...
How to use WeakReference in Java and Android development?
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Using a WeakReference in Android isn't any different than using one in plain old Java. Here is...
Disable output buffering
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SebSeb
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How can I ignore a property when serializing using the DataContractSerializer?
I am using .NET 3.5SP1 and DataContractSerializer to serialize a class. In SP1, they changed the behavior so that you don't have to include DataContract / DataMember attributes on the class and it will just serialize the entire thing. This is the behavior I am using, but now I need to ignore o...
How do I set the path to a DLL file in Visual Studio?
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edited Apr 24 '13 at 21:23
Jesse Good
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How do I find if a string starts with another string in Ruby?
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puts 'abcdefg'.start_with?('abc') #=> true
[edit] This is something I didn't know before t...
Boolean.hashCode()
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1231 and 1237 are just two (sufficiently large) arbitrary prime numbers. Any other two large prime numbers would do fine.
Why primes?
Suppose for a second that we picked composite numbers (non-primes), say 1000 and 2000. When ...
Switch statement multiple cases in JavaScript
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answered Nov 3 '12 at 9:44
kennytmkennytm
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