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Postgresql - change the size of a varchar column to lower length
...t's running.
Make sure you read the Character Types section of the docs before changing this. All sorts of weird cases to be aware of here. The length check is done when values are stored into the rows. If you hack a lower limit in there, that will not reduce the size of existing values at all. ...
Twitter bootstrap scrollable table
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Just to make this clear for people.... <div style="overflow: auto;"><table class="table">....</table></div>
– Henry Weber
Jul 21 '15 at 16:29
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Complex CSS selector for parent of active child [duplicate]
...ample that is relevant to me relating to HTML output by a nice menu plugin for http://drupal.org . The output renders like this:
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grep output to show only matching file
What is the option for grep that will allow me only to print the matching file and not the line within a file that matches the criteria?
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How does one reorder columns in a data frame?
...This is ok when you have a limited number of columns, but what if you have for example 50 columns, it would take too much time to type all column numbers or names. What would be a quicker solution?
– Herman Toothrot
Aug 30 '13 at 12:01
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How to keep environment variables when using sudo
When I use any command with sudo the environment variables are not there. For example after setting HTTP_PROXY the command wget works fine without sudo . However if I type sudo wget it says it can't bypass the proxy setting.
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writing some characters like '
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Use
&lt; for <
&gt; for >
&amp; for &
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What does the X-SourceFiles header do?
...k a page's generated output back to that source file. It's only generated for localhost requests, so you don't need to worry about it being displayed to the world when you deploy the application to an actual server.
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Boolean literals in PowerShell
...$false.
Those are constants, though. There are no language-level literals for booleans.
Depending on where you need them, you can also use anything that coerces to a boolean value, if the type has to be boolean, e.g. in method calls that require boolean (and have no conflicting overload), or condi...
Temporarily disable Eclipse plugin
...in provides view, you will need to close those views (in all perspectives) for this to work.
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