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<title>DROP CAST</title>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en">
<a name="sql-dropcast"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2>Name</h2>
<p>DROP CAST — remove a cast</p>
</div>
<a name="id770173"></a><div class="refsynopsisdiv">
<h2>Synopsis</h2>
<pre class="synopsis">DROP CAST (<em class="replaceable"><code>sourcetype</code></em> AS <em class="replaceable"><code>targettype</code></em>) [ CASCADE | RESTRICT ]</pre>
</div>
<div class="refsect1" lang="en">
<a name="sql-dropcast-description"></a><h2>Description</h2>
<p> <code class="command">DROP CAST</code> removes a previously defined cast.
</p>
<p> To be able to drop a cast, you must own the source or the target
data type. These are the same privileges that are required to
create a cast.
</p>
</div>
<div class="refsect1" lang="en">
<a name="id770217"></a><h2>Parameters</h2>
<div class="variablelist"><dl>
<dt><span class="term"><em class="replaceable"><code>sourcetype</code></em></span></dt>
<dd><p> The name of the source data type of the cast.
</p></dd>
<dt><span class="term"><em class="replaceable"><code>targettype</code></em></span></dt>
<dd><p> The name of the target data type of the cast.
</p></dd>
<dt>
<span xmlns="http://www.w3.org/TR/xhtml1/transitional" class="term"><code xmlns="" class="literal">CASCADE</code></span><br xmlns="http://www.w3.org/TR/xhtml1/transitional"></br><span class="term"><code class="literal">RESTRICT</code></span>
</dt>
<dd><p> These key words do not have any effect, since there are no
dependencies on casts.
</p></dd>
</dl></div>
</div>
<div class="refsect1" lang="en">
<a name="sql-dropcast-examples"></a><h2>Examples</h2>
<p> To drop the cast from type <code class="type">text</code> to type <code class="type">int</code>:
</p>
<pre class="programlisting">DROP CAST (text AS int);</pre>
<p>
</p>
</div>
<div class="refsect1" lang="en">
<a name="sql-dropcast-compat"></a><h2>Compatibility</h2>
<p> The <code class="command">DROP CAST</code> command conforms to the SQL standard.
</p>
</div>
<div class="refsect1" lang="en">
<a name="id770296"></a><h2>See Also</h2>
<span class="simplelist"><a href="sql-createcast.html">CREATE CAST</a></span>
</div>
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