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How to version control a record in a database

...ite queries against the FOO table. Happy days. Then, I would create a FOO_HISTORY table. This has all the columns of the FOO table. The primary key is the same as FOO plus a RevisionNumber column. There is a foreign key from FOO_HISTORY to FOO. You might also add columns related to the revisio...
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JSON to pandas DataFrame

... I found a quick and easy solution to what I wanted using json_normalize() included in pandas 1.01. from urllib2 import Request, urlopen import json import pandas as pd path1 = '42.974049,-81.205203|42.974298,-81.195755' request=Request('http://maps.googleapis.com/maps/api/elevati...
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Sort a single String in Java

...es a code point order UTF-16 sort method: icu-project.org/docs/papers/utf16_code_point_order.html . I don't think Arrays.sort will destroy any supplementary characters due to the way the ranges are defined, but don't quote me. – McDowell Mar 3 '09 at 14:00 ...
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Setting Curl's Timeout in PHP

...cumentation: http://www.php.net/manual/en/function.curl-setopt.php CURLOPT_CONNECTTIMEOUT - The number of seconds to wait while trying to connect. Use 0 to wait indefinitely. CURLOPT_TIMEOUT - The maximum number of seconds to allow cURL functions to execute. curl_setopt($ch, CURLOPT_CONNECTTIMEOUT...
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Clear variable in python

... If want to totally delete it use del: del your_variable Or otherwise, to Make the value None: your_variable = None If it's an iterable (such as a list or tuple), you can make it empty like: your_variable.clear() Then your_variable will be empty ...
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Remove padding from columns in Bootstrap 3

... I just create this @mixin nopadding{ padding:0!important; } in my _mixin.scss and then add @include nopadding; to the code above. :) – jpcmf80 Mar 18 '15 at 14:49 ...
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Bash command to sum a column of numbers [duplicate]

...0s user 2m26.230s sys 0m0.660s bash-2.03$ time perl -nle' $s += $_; END { print $s } ' infile 1.249999925e+15 real 1m34.663s user 1m33.710s sys 0m0.650s share | improve this...
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JQuery: How to call RESIZE event only once it's FINISHED resizing?

... var lightbox_resize = false; $(window).resize(function() { console.log(true); if (lightbox_resize) clearTimeout(lightbox_resize); lightbox_resize = setTimeout(function() { console.log('resize'); }, 500); }...
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jQuery ID starts with

...r list items all started with 'li'. The solution was to start them with 'li_' – Tim Dawson Jun 28 at 12:37 add a comment  |  ...
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rsync error: failed to set times on “/foo/bar”: Operation not permitted

...d the trick, but I wish I didn't have to use it. – d-_-b Dec 14 '10 at 8:48 3 Thanks! It turns ou...