Oracle Designer Model, Release 6i
Deletion rules
Deletion rules on FOREIGN_KEY_CONSTRAINT reference properties, i.e. rule if referenced element is deleted
| Reference Property | Deletion Rule |
| FOREIGN_TABLE_REFERENCE | Block attempt to delete RELATION_DEFINITION |
| TABLE_REFERENCE | Cascade delete, if RELATION_DEFINITION deleted (Owning foreign key) |
| PRIMARY_KEY_REFERENCE | Nullify reference, if PRIMARY_KEY_CONSTRAINT deleted |
| RELATIONSHIP_END_REFERENCE | Nullify reference, if RELATIONSHIP_END deleted |
| UNIQUE_KEY_REFERENCE | Nullify reference, if UNIQUE_KEY_CONSTRAINT deleted |
Impact on child element types if FOREIGN_KEY_CONSTRAINT is deleted
| Impact on children | Via child reference property |
| Nullify reference on COLUMN | COLUMN.CONSTRAINT_DENORMALISED_VIA |
| Nullify reference on MODULE_DETAIL_TABLE_USAGE | MODULE_DETAIL_TABLE_USAGE.CONSTRAINT_REFERENCE2 |
| Nullify reference on MODULE_DETAIL_TABLE_USAGE | MODULE_DETAIL_TABLE_USAGE.TREEWALK_JOIN_CONSTRAINT |
| Nullify reference on RELATION_INDEX | RELATION_INDEX.FOREIGN_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_PREFERENCES | USER_PREFERENCE.CIELEMENT_REFERENCE |
| Block, if KEY_BASED_LINKS exist | KEY_BASED_LINK.JOIN_CONSTRAINT_REFERENCE |
| Block, if MODULE_DETAIL_TABLE_USAGES exist | MODULE_DETAIL_TABLE_USAGE.CONSTRAINT_REFERENCE |