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<h1>22. Virtuoso Functions Guide - sequence_next</h1>
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<div id="text">
<h2>sequence_next</h2>
<div class="refpurpose">Returns the current state of the specified sequence and increments it by one.</div>
<div class="funcsynopsis">
<span class="funcdef">integer <span class="function">sequence_next</span>
</span>
(<span class="paramdef">in <span class="parameter">name</span> varchar</span>,
<span class="paramdef">in <span class="parameter">increment_by</span> integer</span>);
</div>
<div class="refsect1">
<div class="refsect1title">Description</div>
<p>This function returns the current state of the specified sequence and
atomically increments it by one.
The next call will thus return a number one greater than the previous.
The sequence is shared between all connections and all transactions so an increment that is is made in one of connection will
be seen in other connection immediately.
Using a sequence never involves locking.
</p>
</div>
<div class="refsect1">
<div class="refsect1title">Parameters</div>
<div class="refsect2">
<span class="refsect2title">name – </span>The server-wide name of a sequence.
</div>
<div class="refsect2">
<span class="refsect2title">increment_by – </span>
This is to specify how much will be added to the sequence (must be greater than zero)
If not specified defaults to 1.
</div>
</div>
<div class="refsect1">
<div class="refsect1title">Return Types</div>
<p>The function returns integer</p>
</div>
<div class="refsect1">
<div class="refsect1title">See Also</div>
<p>
<a href="sequenceobjects.html">Sequence Objects</a>
</p>
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<a href="fn_sequence_get_all.html">sequence_get_all</a>
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<a href="fn_sequence_set.html">sequence_set</a>
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<a href="fn_sequence_remove.html">sequence_remove</a>
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<a href="fn_registry_get.html">registry_get</a>
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