Remarks
Call the typedef class CConstraintColumnUsage to implement its parameter class CConstraintColumnUsageInfo. See Schema Rowset Classes and Typedef Classes for more information on using typedef classes.
This class identifies the columns used by referential constraints, unique constraints, check constraints, and assertions, defined in the catalog and owned by a given user.
The following table lists the class data members and their corresponding OLE DB Columns. See CONSTRAINT_COLUMN_USAGE Rowset in the OLE DB Programmer's Reference for more information about the schema and columns.
| Data members | OLE DB columns |
| m_szTableCatalog | TABLE_CATALOG |
| m_szTableSchema | TABLE_SCHEMA |
| m_szTableName | TABLE_NAME |
| m_szColumnName | COLUMN_NAME |
| m_guidColumn | COLUMN_GUID |
| m_nColumnPropID | COLUMN_PROPID |
| m_szConstraintCatalog | CONSTRAINT_CATALOG |
| m_szConstraintSchema | CONSTRAINT_SCHEMA |
| m_szConstraintName | CONSTRAINT_NAME |
#include <atldbsch.h>
See Also