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MySQL: Sort GROUP_CONCAT values

... 390 Sure, see http://dev.mysql.com/doc/refman/...tions.html#function_group-concat: SELECT student...
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What is the PostgreSQL equivalent for ISNULL()

... Erwin Brandstetter 439k9696 gold badges809809 silver badges969969 bronze badges answered Feb 6 '10 at 20:02 Kyle ButtKyle...
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Get time difference between two dates in seconds

...d, you're in fact getting the day of the month as an integer between 1 and 31 (not zero based) as opposed to the epoch time you'd get from calling the getTime() method, representing the number of milliseconds since January 1st 1970, 00:00 Rant Depending on what your date related operations are, you...
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Python argparse mutual exclusive group

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Twitter Bootstrap - how to center elements horizontally or vertically

... Update: while this answer was likely correct back in early 2013, it should not be used anymore. The proper solution uses offsets. As for other users suggestion there are also native bootstrap classes available like: class="text-center" class="pagination-centered" thanks to @Hennin...
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How to check if click event is already bound - JQuery

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How can I retrieve the remote git address of a repo?

... Jan MarekJan Marek 8,23222 gold badges1818 silver badges1919 bronze badges ...
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Using a constant NSString as the key for NSUserDefaults

... | edited May 23 '17 at 11:46 Community♦ 111 silver badge answered Apr 15 '09 at 21:31 ...
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Post an empty body to REST API via HttpClient

... 123 Use StringContent or ObjectContent which derive from HttpContent or you can use null as HttpCont...
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Stop Mongoose from creating _id property for sub-document array items

... 306 It's simple, you can define this in the subschema : var mongoose = require("mongoose"); var ...