ORA-18003

Error: ORA-18003: an outline already exists with this signature

Causa: The signature generation algorithm generates signatures that are 16 bytes in length so it is highly unlikely that any 2 signatures will be identical. This message is raised in such a rare case.

Acción: Either reissue the statement that led to the outline being created with some white space added or force the outline to be created in a different category.