Oracle Designer Model, Release 6i
Deletion rules
Deletion rules on ENTITY_BUSINESS_UNIT reference properties, i.e. rule if referenced element is deleted
| Reference Property | Deletion Rule |
| BUSINESS_UNIT_REFERENCE | Block attempt to delete BUSINESS_UNIT |
| ENTITY_REFERENCE | Cascade delete, if ENTITY deleted (Owning foreign key) |
Impact on child element types if ENTITY_BUSINESS_UNIT is deleted
| Impact on children | Via child reference property |
| Cascade delete DIAGRAM_ELEMENT_USAGES | DIAGRAM_ELEMENT_USAGE.CIELEMENT_REFERENCE |