Yeah did as you said PAVB here is the error iam get.

SQL> delete from GLISADM.T_CUSTOMER where rowid in (
2 SELECT rowid FROM GLISADM.T_CUSTOMER a
3 WHERE a.rowid > (SELECT MIN(b.rowid)
4 FROM GLISADM.T_CUSTOMER b
WHERE b.CUS_COMPANY = a.CUS_COMPANY
and b.CUS_CONTACT_NAME = a.CUS_CONTACT_NAME
5 6 7 and b.CUS_COUNTRY_CODE = b.CUS_COUNTRY_CODE));
delete from GLISADM.T_CUSTOMER where rowid in (
*
ERROR at line 1:
ORA-23474: definition of "GLISADM"."T_CUSTOMER" has changed since generation of
replication support
ORA-26500: error on caching "GLISADM"."T_CUSTOMER"

any suggestions