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<h1>22. Virtuoso Functions Guide - dayname</h1>
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datestring,
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<a class="selected" href="fn_dayname.html">dayname</a>
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<a href="fn_dayofmonth.html">dayofmonth</a>
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<a href="fn_dayofweek.html">dayofweek</a>
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<a href="fn_dayofyear.html">dayofyear</a>
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<a href="fn_dt_set_tz.html">dt_set_tz</a>
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<a href="fn_get_timestamp.html">get_timestamp</a>
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<a href="fn_getdate.html">getdate</a>
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<a href="fn_minute.html">minute</a>
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<a href="fn_msec_time.html">msec_time</a>
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<a href="fn_now.html">now</a>
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<div id="text">
<h2>dayname</h2>
<div class="refpurpose">decompose a datetime to its components</div>
<div class="funcsynopsis">
<span class="funcdef">
<span class="function">dayname</span>
</span>
(<span class="paramdef">in <span class="parameter">dt</span> datetime</span>);
</div>
<div class="funcsynopsis">
<span class="funcdef">
<span class="function">dayofmonth</span>
</span>
(<span class="paramdef">in <span class="parameter">dt</span> datetime</span>);
</div>
<div class="funcsynopsis">
<span class="funcdef">
<span class="function">dayofweek</span>
</span>
(<span class="paramdef">in <span class="parameter">dt</span> datetime</span>);
</div>
<div class="funcsynopsis">
<span class="funcdef">
<span class="function">dayofyear</span>
</span>
(<span class="paramdef">in <span class="parameter">dt</span> datetime</span>);
</div>
<div class="funcsynopsis">
<span class="funcdef"> <span class="function">hour</span> </span>
(<span class="paramdef">in <span class="parameter">dt</span> datetime</span>);
</div>
<div class="funcsynopsis">
<span class="funcdef"> <span class="function">minute</span> </span>
(<span class="paramdef">in <span class="parameter">dt</span> datetime</span>);
</div>
<div class="funcsynopsis">
<span class="funcdef"> <span class="function">month</span> </span>
(<span class="paramdef">in <span class="parameter">dt</span> datetime</span>);
</div>
<div class="funcsynopsis">
<span class="funcdef">
<span class="function">monthname</span>
</span>
(<span class="paramdef">in <span class="parameter">dt</span> datetime</span>);
</div>
<div class="funcsynopsis">
<span class="funcdef"> <span class="function">quarter</span>
</span>
(<span class="paramdef">in <span class="parameter">dt</span> datetime</span>);
</div>
<div class="funcsynopsis">
<span class="funcdef">
<span class="function">second</span>
</span>
(<span class="paramdef">in <span class="parameter">dt</span> datetime</span>);
</div>
<div class="funcsynopsis">
<span class="funcdef">
<span class="function">timezone</span>
</span>
(<span class="paramdef">in <span class="parameter">dt</span> datetime</span>);
</div>
<div class="funcsynopsis">
<span class="funcdef"> <span class="function">week</span> </span>
(<span class="paramdef">in <span class="parameter">dt</span> datetime</span>);
</div>
<div class="funcsynopsis">
<span class="funcdef"> <span class="function">year</span> </span>
(<span class="paramdef">in <span class="parameter">dt</span> datetime</span>);
</div>
<div class="refsect1">
<div class="refsect1title">Description</div>
<p>These functions decompose a <span class="computeroutput">datetime</span> to its components. These can be used on <span class="computeroutput">timestamps</span>, <span class="computeroutput">datetimes</span>, <span class="computeroutput">dates</span> and <span class="computeroutput">times</span>, all being the same internal data type.</p>
<div>
<pre class="programlisting">
: dayname name of day
: monthname name of month
: dayofmonth day of month
: dayofweek day of week
: dayofyear day since start of year
: quarter quarter number,
: week week number
: month month number, starting at 1 for January
: year year
: hour hour
: minute minute
: second second
: timezone offset from UTC in minutes
</pre>
</div>
</div>
<div class="refsect1">
<div class="refsect1title">Parameters</div>
<div class="refsect2">
<span class="refsect2title">dt – </span>
A <span class="computeroutput">datetime</span> value.
</div>
</div>
<div class="refsect1">
<div class="refsect1title">Return Values</div>
<p>
<span class="computeroutput">monthname</span> and <span class="computeroutput">dayname</span>
return a <span class="computeroutput">varchar</span>. The others return an
<span class="computeroutput">integer</span>.</p>
</div>
<div class="refsect1">
<div class="refsect1title">Examples</div>
<a name="ex_dayname_1" />
<div class="example">
<div class="exampletitle">Simple example</div>
<div>
<pre class="screen">SQL> select dayname(stringdate('2001-03-02'));
callret
VARCHAR
_______________________________________________________________________________
Friday
1 Rows. -- 3 msec.
</pre>
</div>
</div>
</div>
<div class="refsect1">
<div class="refsect1title">See Also</div>
<p>
<a href="fn_datestring.html">stringdate,
datestring,
datestring_GMT</a>,
<a href="coredbengine.html#DTTIMESTAMP">The <span class="computeroutput">TIMESTAMP</span> datatype</a>
</p>
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