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PostgreSQL array_agg order
...8.4/static/functions-aggregate.html
In the current implementation, the order of the input is in principle unspecified. Supplying the input values from a sorted subquery will usually work, however. For example:
SELECT xmlagg(x) FROM (SELECT x FROM test ORDER BY y DESC) AS tab;
So in your c...
How to customize ?
...right: 0; font-size: <many a>px; opacity: 0; margin: 0; padding: 0; border: none; }
– x-yuri
Jun 19 '13 at 15:42
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What is the difference between procedural programming and functional programming? [closed]
...rely functional program always yields the same value for an input, and the order of evaluation is not well-defined; which means that uncertain values like user input or random values are hard to model in purely functional languages.
1 As everything else in this answer, that’s a generalisation. ...
Idiomatic way to convert an InputStream to a String in Scala
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This is potentially an order of magnitude faster than scala.io.Source in Scala 2.11.7. I wrote a really basic benchmark of it and most of the time, it was about 5% faster for large files (test was ~35 MB text file) all the way up to 2,800% faster f...
Can't connect to local MySQL server through socket '/var/mysql/mysql.sock' (38)
...dress (127.0.0.1) instead of 'localhost' in mysql_connect(). This "forces" php to connect through TCP/IP instead of a unix socket.
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What does ** (double star/asterisk) and * (star/asterisk) do for parameters?
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The output of [6] is in reverse order. name one age 27
– thanos.a
Jan 8 '17 at 21:11
61
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Java: Integer equals vs. ==
... cdsCt were both ints so this was fine, but I had to make them Integers in order to check for the null situation which is handled differently ...
– Jeremy Goodell
Sep 3 '10 at 17:40
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Django filter queryset __in for *every* item in list
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Summary:
One option is, as suggested by jpic and sgallen in the comments, to add .filter() for each category. Each additional filter adds more joins, which should not be a problem for small set of categories.
There is the aggregation approach. This query would be shorter and...
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
...and am dipping my hand into building a web-scraper. It's nothing fancy at all; its only purpose is to get the data off of a betting website and have this data put into Excel.
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Bootstrap 3: Keep selected tab on page refresh
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Xavi's code was allmost fully working. But when navigating to another page, submitting a form, then being redirected to the page with my tabs was not loading the saved tab at all.
localStorage to the rescue (slightly changed Nguyen's code):...