KEY_COLUMN_USAGE

Transact-SQL Reference

Transact-SQL Reference

KEY_COLUMN_USAGE

Contains one row for each column, in the current database, that is constrained as a key. This information schema view returns information about the objects to which the current user has permissions. The INFORMATION_SCHEMA.KEY_COLUMN_USAGE view is based on the sysobjects, syscolumns, sysreferences, spt_values, and sysindexes system tables.

To retrieve information from these views, specify the fully qualified name of INFORMATION_SCHEMA view_name.

Column name Data type Description
CONSTRAINT_CATALOG nvarchar(128) Constraint qualifier
CONSTRAINT_SCHEMA nvarchar(128) Constraint owner name
CONSTRAINT_NAME nvarchar(128) Constraint name
TABLE_CATALOG nvarchar(128) Table qualifier
TABLE_SCHEMA nvarchar(128) Table owner name
TABLE_NAME nvarchar(128) Table name
COLUMN_NAME nvarchar(128) Column name
ORDINAL_POSITION int Column ordinal position

See Also

syscolumns

sysindexes

sysobjects

sysreferences