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<!-- keywords: sqlite3_vtab_cursor {virtual table cursor} -->
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<a href="../c3ref/intro.html"><h2>SQLite C Interface</h2></a>
<h2>Virtual Table Cursor Object</h2>
</div>
<blockquote><pre>
struct sqlite3_vtab_cursor {
sqlite3_vtab *pVtab; /* Virtual table of this cursor */
/* Virtual table implementations will typically add additional fields */
};
</pre></blockquote>
<p>
Every <a href="../c3ref/module.html">virtual table module</a> implementation uses a subclass of the
following structure to describe cursors that point into the
<a href="../vtab.html">virtual table</a> and are used
to loop through the virtual table. Cursors are created using the
<a href="../vtab.html#xopen">xOpen</a> method of the module and are destroyed
by the <a href="../vtab.html#xclose">xClose</a> method. Cursors are used
by the <a href="../vtab.html#xfilter">xFilter</a>, <a href="../vtab.html#xnext">xNext</a>, <a href="../vtab.html#xeof">xEof</a>, <a href="../vtab.html#xcolumn">xColumn</a>, and <a href="../vtab.html#xrowid">xRowid</a> methods
of the module. Each module implementation will define
the content of a cursor structure to suit its own needs.</p>
<p>This superclass exists in order to define fields of the cursor that
are common to all implementations.
</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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