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Postgres: Distinct but only for one column
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231
To do a distinct on only one (or n) column(s):
select distinct on (name)
name, col1, col2
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Are Java static initializers thread safe?
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edited May 20 '09 at 8:55
answered May 18 '09 at 16:43
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How to make an element in XML schema optional?
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2 Answers
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Is there a difference between “==” and “is”?
... the objects referred to by the variables are equal.
>>> a = [1, 2, 3]
>>> b = a
>>> b is a
True
>>> b == a
True
# Make a new copy of list `a` via the slice operator,
# and assign it to variable `b`
>>> b = a[:]
>>> b is a
False
>>>...
Does JavaScript have a built in stringbuilder class?
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325
If you have to write code for Internet Explorer make sure you chose an implementation, which us...
How to join two JavaScript Objects, without using JQUERY [duplicate]
I have two json objects obj1 and obj2, i want to merge them and crete a single json object.
The resultant json should have all the values from obj2 and the values from obj1 which is not present in obj2.
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Select last row in MySQL
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412
Yes, there's an auto_increment in there
If you want the last of all the rows in the table,...
How to find the php.ini file used by the command line?
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edited Jan 24 '19 at 12:07
answered Sep 19 '10 at 7:11
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How to filter out files by extension in NERDTree?
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2 Answers
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