SQL> ALTER SESSION FORCE PARALLEL DML PARALLEL 4; Session altered. SQL> DELETE sh.customers1 WHERE cust_id>10000;32000 rows deleted. SQL> select * from sh.customers1; select * from sh.customers1 * ERROR at line 1: ORA-12838: cannot read/modify an object after modifying it in parallelIf you modified has table in parallel, then s query the content of that table … Continue reading ORA-12838: cannot read/modify an object after modifying it in parallel