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Error 1022 - Can't write; duplicate key in table
...n the old table.
A fix was released in 2.3.0.
See https://bugs.launchpad.net/percona-toolkit/+bug/1498128 for more details.
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Checking if a variable is an integer
...is_a? method
>> 1.is_a? Integer
=> true
>> "dadadad@asdasd.net".is_a? Integer
=> false
>> nil.is_a? Integer
=> false
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Hidden Features of MySQL
...379322B54AD41AEB0E4100D87C8CDDF1D8C.aspx
http://souptonuts.sourceforge.net/readme_mysql.htm
DataTypes:
http://dev.mysql.com/doc/refman/5.1/en/storage-requirements.html
http://www.informit.com/articles/article.aspx?p=1238838&seqNum=2
http://bitfilm.net/2008/03/24/saving-bytes-efficient-da...
Visual Studio: Is there a way to collapse all items of Solution Explorer?
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There's a macro at http://geekswithblogs.net/scottkuhl/archive/2007/04/09/111195.aspx for Visual Studio 2005.
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How can I return NULL from a generic method in C#?
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In .NET an enum is a very thin (and rather leaky) wrapper around an integer type. The convention is to use zero for your "default" enum value.
– Mike Chamberlain
Mar 5 '12 at 3:53
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How to reformat JSON in Notepad++?
...all JSTool per this answer
INSTALL
Download it from http://sourceforge.net/projects/jsminnpp/ and copy JSMinNpp.dll to plugin directory of Notepad++. Or you can just install "JSTool" from Plugin Manager in Notepad++.
New Notepad++ install and where did PluginManager go? See How to view Plugin M...
Rotating x axis labels in R for barplot
...el text perpendicular to axis
It is written here: http://www.statmethods.net/graphs/bar.html
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View HTTP headers in Google Chrome?
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I'm not sure about your exact version, but Chrome has a tab "Network" with several items and when I click on them I can see the headers on the right in a tab.
Press F12 on windows or ⌥⌘I on a mac to bring up the Chrome developer tools.
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Remove IE10's “clear field” X button on certain inputs?
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Here is a jsFiddle illustrating this workaround: jsfiddle.net/zoldello/S5YRj
– Phil
Mar 5 '14 at 15:06
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Javascript/jQuery: Set Values (Selection) in a multiple Select
... + e + "']").prop("selected", true);
});
Working Example http://jsfiddle.net/McddQ/1/
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