Oracle Designer Model, Release 6i
Deletion rules
Deletion rules on VIEW_USAGE reference properties, i.e. rule if referenced element is deleted
| Reference Property | Deletion Rule |
| VIEW_OBJECT_REFERENCE | Block attempt to delete VIEW_OBJECT |
| APPLICATION_MODULE_REFERENCE | Cascade delete, if APPLICATION_MODULE deleted (Owning foreign key) |
Impact on child element types if VIEW_USAGE is deleted
| Impact on children | Via child reference property |
| Cascade delete DIAGRAM_ELEMENT_USAGES | DIAGRAM_ELEMENT_USAGE.CIELEMENT_REFERENCE |
| Cascade delete ELEMENT_RULE_USAGES | ELEMENT_RULE_USAGE.CIELEMENT_REFERENCE |
| Cascade delete TAGGED_VALUES | TAGGED_VALUE.ELEMENT_REFERENCE |
| Cascade delete UML_DEPENDENCY_CLIENTS | UML_DEPENDENCY_CLIENT.CLIENT_ELEMENT_REFERENCE |
| Cascade delete UML_DEPENDENCY_SUPPLIERS | UML_DEPENDENCY_SUPPLIER.SUPPLIER_ELEMENT_REFERENCE |
| Cascade delete VIEW_LINK_END_USAGES | VIEW_LINK_END_USAGE.VIEW_USAGE_REFERENCE |