Oracle Solution for Error ora-23367

ORA-23367: table string is missing the primary key

What triggered the Error:

ble specified in argument "oname1" or "oname2" in call to "differences()" routine does not contain either a primary key or a virtual primary key (defined through dbms_repcat package under symmetric replication).

What should we do to fix it:

ke sure the tables specified have a primary key defined.