Oracle Designer Model, Release 6i
Deletion rules
Deletion rules on INDEX_ENTRY reference properties, i.e. rule if referenced element is deleted
| Reference Property | Deletion Rule |
| COLUMN_REFERENCE | Cascade delete, if COLUMN deleted |
| CQA_REFERENCE | Cascade delete, if COLUMN_QUALIFIED_ATTRIBUTE deleted |
| RELATION_INDEX_REFERENCE | Cascade delete, if RELATION_INDEX deleted (Owning foreign key) |
Impact on child element types if INDEX_ENTRY is deleted
| Impact on children | Via child reference property |
| Cascade delete DIAGRAM_ELEMENT_USAGES | DIAGRAM_ELEMENT_USAGE.CIELEMENT_REFERENCE |