| Column Name | Type | Length | Nullability | Contents | 
|---|---|---|---|---|
| CONSTRAINTID | CHAR | 36 | false | unique identifier for the constraint | 
| CHECKDEFINITION | LONG VARCHAR | false | text of check constraint definition | |
| REFERENCEDCOLUMNS | org.apache.derby.catalog. ReferencedColumns: This class is not part of the public API. | false | description of the columns referenced by the check constraint |