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Regular expression for a string that does not start with a sequence
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When to use SELECT … FOR UPDATE?
...hout specifying FOR UPDATE explicitly.
To solve this problem, Thread 1 should SELECT id FROM rooms FOR UPDATE, thereby preventing Thread 2 from deleting from rooms until Thread 1 is done. Is that correct?
This depends on the concurrency control your database system is using.
MyISAM in MySQ...
What are differences between PECL and PEAR?
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edited Mar 21 '17 at 14:29
lord_t
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Twitter Bootstrap Button Text Word Wrap
...ody">
<h4>Posted on</h4>
<p>22nd September 2013</p>
<h4>Tags</h4>
<a href="#" class="btn btn-primary btn-xs col-lg-12" style="margin-bottom:4px;white-space: normal;">Lorem ipsum dolor sit amet, consectetur adipiscing elit.</a>
&l...
Basic example of using .ajax() with JSONP?
...at looks like this after it loads the data:
<script>
{['some string 1', 'some data', 'whatever data']}
</script>
However this is a bit inconvenient, because we have to fetch this array from script tag. So JSONP creators decided that this will work better (and it is):
script = documen...
CSS hide scroll bar if not needed
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edited Mar 3 at 12:48
Martin
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Should I use encoding declaration in Python 3?
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113
Because the default is UTF-8, you only need to use that declaration when you deviate from the ...
How to check if a function exists on a SQL database
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edited Oct 18 '13 at 14:18
answered Mar 24 '11 at 12:30
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Xcode 4 - “Archive” is greyed out?
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edited Dec 14 '12 at 14:01
Rafael Bugajewski
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SQL set values of one column equal to values of another column in the same table
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157
Sounds like you're working in just one table so something like this:
update your_table
set B ...