| OLE DB Programmer's Reference |  |
| OLE DB Programmer's Reference | |
GUID: DBSCHEMA_TABLE_CONSTRAINTS
Number of restriction columns: 7
Restriction columns: CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, CONSTRAINT_NAME, TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME, CONSTRAINT_TYPE
Default sort order: CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, CONSTRAINT_NAME, TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME, CONSTRAINT_TYPE
Description: The TABLE_CONSTRAINTS rowset identifies the table constraints defined in the catalog that are owned by a given user.
| Column name | Type indicator | Description |
|---|---|---|
| CONSTRAINT_CATALOG | DBTYPE_WSTR | Catalog name. NULL if the provider does not support catalogs. |
| CONSTRAINT_SCHEMA | DBTYPE_WSTR | Unqualified schema name. NULL if the provider does not support schemas. |
| CONSTRAINT_NAME | DBTYPE_WSTR | Constraint name. |
| TABLE_CATALOG | DBTYPE_WSTR | Catalog name in which the table is defined. NULL if the provider does not support catalogs. |
| TABLE_SCHEMA | DBTYPE_WSTR | Unqualified schema name in which the table is defined. NULL if the provider does not support schemas. |
| TABLE_NAME | DBTYPE_WSTR | Table name. |
| CONSTRAINT_TYPE | DBTYPE_WSTR | Constraint type. One of the following:
"UNIQUE" |
| IS_DEFERRABLE | DBTYPE_BOOL | VARIANT_TRUE—The table constraint is deferrable.
VARIANT_FALSE—The table constraint is not deferrable. |
| INITIALLY_DEFERRED | DBTYPE_BOOL | VARIANT_TRUE—The table constraint is initially deferred.
VARIANT_FALSE—The table constraint is initially immediate. |
| DESCRIPTION | DBTYPE_WSTR | Human-readable description of the column |