Oracle Designer Model, Release 6i
Deletion rules
Deletion rules on PRIMARY_KEY_CONSTRAINT reference properties, i.e. rule if referenced element is deleted
| Reference Property | Deletion Rule |
| TABLE_REFERENCE | Cascade delete, if RELATION_DEFINITION deleted (Owning foreign key) |
| UNIQUE_IDENTIFIER_REFERENCE | Nullify reference, if UNIQUE_IDENTIFIER deleted |
Impact on child element types if PRIMARY_KEY_CONSTRAINT is deleted
| Impact on children | Via child reference property |
| Nullify reference on FOREIGN_KEY_CONSTRAINT | FOREIGN_KEY_CONSTRAINT.PRIMARY_KEY_REFERENCE |
| Cascade delete CONSTRAINT_USAGES | CONSTRAINT_USAGE.CONSTRAINT_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 KEY_COMPONENTS | KEY_COMPONENT.CONSTRAINT_REFERENCE |
| Cascade delete MAPPING_ELEMENTS | MAPPING_ELEMENT.SOURCE_CIELEMENT_REFERENCE |
| Cascade delete MAPPING_ELEMENTS | MAPPING_ELEMENT.TARGET_CIELEMENT_REFERENCE |
| Cascade delete PREFERENCE_SET_USAGES | PREFERENCE_SET_USAGE.CIELEMENT_REFERENCE |
| Cascade delete USER_OBJECT_INDEX_STORAGES | USER_OBJECT_INDEX_STORAGE.PRIMARY_KEY_REFERENCE |
| Cascade delete USER_PREFERENCES | USER_PREFERENCE.CIELEMENT_REFERENCE |
| Block, if KEY_BASED_LINKS exist | KEY_BASED_LINK.PRIMARY_KEY_REFERENCE |