Oracle Designer Model, Release 6i
Deletion rules
Deletion rules on SNAPSHOT_REFRESH_GROUP reference properties, i.e. rule if referenced element is deleted
| Reference Property | Deletion Rule |
| ORACLE_DATABASE_REFERENCE | Cascade delete, if ORACLE_DATABASE deleted (Owning foreign key) |
| ROLLBACK_SEGMENT_REFERENCE | Nullify reference, if ROLLBACK_SEGMENT deleted |
Impact on child element types if SNAPSHOT_REFRESH_GROUP is deleted
| Impact on children | Via child reference property |
| Nullify reference on SNAPSHOT_IMPLEMENTATION | SNAPSHOT_IMPLEMENTATION.SNAPSHOT_GROUP_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 |