OLE DB Programmer's Reference |
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. |
1998-2001 Microsoft Corporation. All rights reserved.