ORA-36712: (XSMXALLOC02) Relation workspace object must be a one-dimensional self-relation to be used as a SOURCE or BASIS with ALLOCATE.

ORA-36712: (XSMXALLOC02) Relation workspace object must be a one-dimensional self-relation to be used as a SOURCE or BASIS with ALLOCATE.

Cause: The user specified an invalid source or basis relation on the ALLOCATE command line.

Action: Modify the relation to be a one-dimensional self-relation.