Oracle Designer Model, Release 6i
Deletion rules
Deletion rules on RELATIONSHIP_END reference properties, i.e. rule if referenced element is deleted
| Reference Property | Deletion Rule |
| FROM_ENTITY_REFERENCE | Cascade delete, if ENTITY deleted (Owning foreign key) |
| TO_ENTITY_REFERENCE | Cascade delete, if ENTITY deleted |
| OTHER_RELATIONSHIP_END_REF | Cascade delete, if RELATIONSHIP_END deleted |
Impact on child element types if RELATIONSHIP_END is deleted
| Impact on children | Via child reference property |
| Nullify reference on FOREIGN_KEY_CONSTRAINT | FOREIGN_KEY_CONSTRAINT.RELATIONSHIP_END_REFERENCE |
| Cascade delete DIAGRAM_ELEMENT_USAGES | DIAGRAM_ELEMENT_USAGE.CIELEMENT_REFERENCE |
| Cascade delete DOCUMENT_ATTACHMENTS | DOCUMENT_ATTACHMENT.ELEMENT_REFERENCE |
| Cascade delete EXTENDED_STRUCTURE_ELEMENTS | EXTENDED_STRUCTURE_ELEMENT.PART_OF_REFERENCE |
| Cascade delete EXTENDED_STRUCTURE_ELEMENTS | EXTENDED_STRUCTURE_ELEMENT.USE_OF_REFERENCE |
| Cascade delete RELATIONSHIP_ENDS | RELATIONSHIP_END.OTHER_RELATIONSHIP_END_REF |
| Block, if UNIQUE_IDENTIFIER_ENTRIES exist | UNIQUE_IDENTIFIER_ENTRY.RELATIONSHIP_END_REFERENCE |