_RDC_constraint_list.Constraint_type
| Description | The data source for the RDC constraints. |
| Details: | |
| Parent saveframe | RDC_constraints |
| Data type | code |
| Common values | RDC |
| DB table | RDC_constraint_list |
| DB column | Constraint_type |
| DB type | VARCHAR(31) |
| NULL allowed | yes |