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start_of_month.html
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start_of_month.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<h1>common_schema</h1> <strong>2.2</strong> documentation
<div class="subtitle">DBA's framework for MySQL</div>
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<h2><a href="start_of_month.html">start_of_month</a></h2>
<h3>NAME</h3>
start_of_month(): Returns first day of month of given DATETIME, as DATE object.
<h3>TYPE</h3>
Function
<h3>DESCRIPTION</h3>
<p>
Returns first day of month of given DATETIME, as DATE object
(equivalent to midnight, the first second of given DATETIME's month).
</p>
<h3>SYNOPSIS</h3>
<p>
<blockquote><pre>start_of_month(dt DATETIME)
RETURNS DATE</pre></blockquote>
</p>
<p>
Input:
<ul>
<li><strong>dt</strong>: a DATETIME object, from which to extract start of month.
</li>
</ul>
</p>
<h3>EXAMPLES</h3>
<blockquote><pre>mysql> SELECT common_schema.start_of_month('2011-03-24 11:17:08') as dt;
+------------+
| dt |
+------------+
| 2011-03-01 |
+------------+
</pre></blockquote>
<h3>ENVIRONMENT</h3>
MySQL 5.1 or newer
<h3>AUTHOR</h3>
Shlomi Noach
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