sesam_rollback

(No version information available, might be only in CVS)

sesam_rollback — Discard any pending updates to the SESAM database

说明

bool sesam_rollback ( void )

sesam_rollback() discards any pending updates to the database. Also affected are result cursors and result descriptors.

At the end of each script, and as part of the sesam_disconnect() function, an implied sesam_rollback() is executed, discarding any pending changes to the database.

返回值

如果成功则返回 TRUE，失败则返回 FALSE。

范例

Example#1 Discarding an update to the SESAM database


<?php
if (sesam_connect ("mycatalog", "myschema", "otto")) {
    if (sesam_execimm ("INSERT INTO mytable VALUES (*, 'Small Test', <0, 8, 15>)")
        && sesam_execimm ("INSERT INTO othertable VALUES (*, 'Another Test', 1)")) {
        sesam_commit();
    } else {
        sesam_rollback();
    }
}
?>

参见

sesam_commit()