Oracle Designer Model, Release 6i
Deletion rules
Deletion rules on DATABASE_USER_ROLE reference properties, i.e. rule if referenced element is deleted
| Reference Property | Deletion Rule |
| DATABASE_USER_REFERENCE | Cascade delete, if DATABASE_USER deleted (Owning foreign key) |
| ROLE_REFERENCE | Cascade delete, if ROLE deleted |
Impact on child element types if DATABASE_USER_ROLE is deleted
| Impact on children | Via child reference property |
| Cascade delete DIAGRAM_ELEMENT_USAGES | DIAGRAM_ELEMENT_USAGE.CIELEMENT_REFERENCE |