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<div class=nosearch>
<a href="../c3ref/intro.html"><h2>SQLite C Interface</h2></a>
<h2>Checkpoint a database</h2>
</div>
<blockquote><pre>
int sqlite3_wal_checkpoint(sqlite3 *db, const char *zDb);
</pre></blockquote>
<p>
The sqlite3_wal_checkpoint(D,X) is equivalent to
<a href="../c3ref/wal_checkpoint_v2.html">sqlite3_wal_checkpoint_v2</a>(D,X,<a href="../c3ref/c_checkpoint_full.html">SQLITE_CHECKPOINT_PASSIVE</a>,0,0).</p>
<p>In brief, sqlite3_wal_checkpoint(D,X) causes the content in the
<a href="../wal.html">write-ahead log</a> for database X on <a href="../c3ref/sqlite3.html">database connection</a> D to be
transferred into the database file and for the write-ahead log to
be reset. See the <a href="../wal.html#ckpt">checkpointing</a> documentation for addition
information.</p>
<p>This interface used to be the only way to cause a checkpoint to
occur. But then the newer and more powerful <a href="../c3ref/wal_checkpoint_v2.html">sqlite3_wal_checkpoint_v2()</a>
interface was added. This interface is retained for backwards
compatibility and as a convenience for applications that need to manually
start a callback but which do not need the full power (and corresponding
complication) of <a href="../c3ref/wal_checkpoint_v2.html">sqlite3_wal_checkpoint_v2()</a>.
</p><p>See also lists of
<a href="../c3ref/objlist.html">Objects</a>,
<a href="../c3ref/constlist.html">Constants</a>, and
<a href="../c3ref/funclist.html">Functions</a>.</p>
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