CONSTRAINT_COLUMN_USAGE Rowset
GUID: DBSCHEMA_CONSTRAINT_COLUMN_USAGE
Number of restriction columns: 7
Restriction columns: TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME, COLUMN_NAME, CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, CONSTRAINT_NAME
Default sort order: TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME, COLUMN_NAME, COLUMN_GUID, COLUMN_PROPID, CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, CONSTRAINT_NAME
Description: The CONSTRAINT_COLUMN_USAGE rowset identifies the columns used by referential constraints, unique constraints, check constraints, and assertions and that are defined in the catalog and owned by a given user.
Column name |
Type indicator |
Description |
|---|---|---|
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. |
COLUMN_NAME |
DBTYPE_WSTR |
Column name. This column, together with the COLUMN_GUID and COLUMN_PROPID columns, forms the column ID. One or more of these columns will be NULL, depending on which elements of the DBID structure the provider uses. |
COLUMN_GUID |
DBTYPE_GUID |
Column GUID. |
COLUMN_PROPID |
DBTYPE_UI4 |
Column property ID. |
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. |