Issuing the DDL command on an object in RC query may result in error:
RC=072, RCODE=0012 OFS Internal error
Release : 20.0
Check if PTF LU07096 is installed in this environment. This PTF has been marked as in error, as it resulted in a number of problems for our products when generating DDL. The RC/Query DDL and HDDL commands were impacted by this problem.
The resolving PTF for this problem is LU07459.