126 lines
4.4 KiB
HTML
126 lines
4.4 KiB
HTML
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<title>Prepared Statement Status</title>
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<!-- keywords: sqlite3_stmt_status -->
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<div class=nosearch>
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<a href="intro.html"><h2>SQLite C Interface</h2></a>
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<h2>Prepared Statement Status</h2>
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</div>
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<blockquote><pre>
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int sqlite3_stmt_status(sqlite3_stmt*, int op,int resetFlg);
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</pre></blockquote>
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<p>
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Each prepared statement maintains various
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<a href="../c3ref/c_stmtstatus_counter.html">SQLITE_STMTSTATUS counters</a> that measure the number
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of times it has performed specific operations. These counters can
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be used to monitor the performance characteristics of the prepared
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statements. For example, if the number of table steps greatly exceeds
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the number of table searches or result rows, that would tend to indicate
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that the prepared statement is using a full table scan rather than
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an index.</p>
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<p>This interface is used to retrieve and reset counter values from
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a <a href="../c3ref/stmt.html">prepared statement</a>. The first argument is the prepared statement
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object to be interrogated. The second argument
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is an integer code for a specific <a href="../c3ref/c_stmtstatus_counter.html">SQLITE_STMTSTATUS counter</a>
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to be interrogated.
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The current value of the requested counter is returned.
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If the resetFlg is true, then the counter is reset to zero after this
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interface call returns.</p>
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<p>See also: <a href="../c3ref/status.html">sqlite3_status()</a> and <a href="../c3ref/db_status.html">sqlite3_db_status()</a>.
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</p><p>See also lists of
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<a href="objlist.html">Objects</a>,
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<a href="constlist.html">Constants</a>, and
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<a href="funclist.html">Functions</a>.</p>
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