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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<title>Destroy A Prepared Statement Object</title>
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<a href="intro.html"><h2>SQLite C Interface</h2></a><h2>Destroy A Prepared Statement Object</h2><blockquote><pre>int sqlite3_finalize(sqlite3_stmt *pStmt);
</pre></blockquote><p>
The sqlite3_finalize() function is called to delete a <a href="../c3ref/stmt.html">prepared statement</a>.
If the most recent evaluation of the statement encountered no errors
or if the statement is never been evaluated, then sqlite3_finalize() returns
SQLITE_OK.  If the most recent evaluation of statement S failed, then
sqlite3_finalize(S) returns the appropriate <a href="../rescode.html">error code</a> or
<a href="../rescode.html#extrc">extended error code</a>.</p>

<p>The sqlite3_finalize(S) routine can be called at any point during
the life cycle of <a href="../c3ref/stmt.html">prepared statement</a> S:
before statement S is ever evaluated, after
one or more calls to <a href="../c3ref/reset.html">sqlite3_reset()</a>, or after any call
to <a href="../c3ref/step.html">sqlite3_step()</a> regardless of whether or not the statement has
completed execution.</p>

<p>Invoking sqlite3_finalize() on a NULL pointer is a harmless no-op.</p>

<p>The application must finalize every <a href="../c3ref/stmt.html">prepared statement</a> in order to avoid
resource leaks.  It is a grievous error for the application to try to use
a prepared statement after it has been finalized.  Any use of a prepared
statement after it has been finalized can result in undefined and
undesirable behavior such as segfaults and heap corruption.
</p><p>See also lists of
  <a href="objlist.html">Objects</a>,
  <a href="constlist.html">Constants</a>, and
  <a href="funclist.html">Functions</a>.</p>