Dont forget the 5th parameter: $type. It's will slowly your code some times. Eg:
<?php
$sql = "select * from (select * from b xxx) where rownum < :rnum";
$stmt = OCIParse($conn,$sql);
OCIBindByName($stmt, ":rnum", $NUM, -1);
OCIExecute($stmt);
?>
Below code was slow 5~6 time than not use bind value.Change the 3rd line to:
<?php
OCIBindByName($stmt, ":rnum", $NUM, -1, SQLT_INT);
?>
will resloved this problem.
This issue is also in the ADODB DB class(adodb.sf.net), you will be careful for use the SelectLimit method.
