I need idea to change this sql to return one row. select 1 from dual where NUMTAB(9,8,4) in NUMTAB(4,8,9,33) ; Amihay Gonen Dba Team Leader PD Division ECTel Ltd. celluar:+972-525092168 tel:+972-3-9002168 mail:amihayg@xxxxxxxxx msn :agonenil@xxxxxxxxxxx