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CONSTRAINT_TABLE_USAGE (Transact-SQL)

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Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance

Returns one row for each table in the current database that has a constraint defined on the table. This information schema view returns information about the objects to which the current user has permissions.

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

Column name Data type Description
TABLE_CATALOG nvarchar(128) Table qualifier.
TABLE_SCHEMA nvarchar(128) Name of schema that contains the table.

Important: Don't use INFORMATION_SCHEMA views to determine the schema of an object. INFORMATION_SCHEMA views only represent a subset of the metadata of an object. The only reliable way to find the schema of an object is to query the sys.objects catalog view.
TABLE_NAME sysname Table name.
CONSTRAINT_CATALOG nvarchar(128) Constraint qualifier.
CONSTRAINT_SCHEMA nvarchar(128) Name of schema that contains the constraint.

Important: Don't use INFORMATION_SCHEMA views to determine the schema of an object. INFORMATION_SCHEMA views only represent a subset of the metadata of an object. The only reliable way to find the schema of an object is to query the sys.objects catalog view.
CONSTRAINT_NAME sysname Constraint name.

See Also

System Views (Transact-SQL)
Information Schema Views (Transact-SQL)
sys.objects (Transact-SQL)
sys.check_constraints (Transact-SQL)
sys.key_constraints (Transact-SQL)
sys.foreign_keys (Transact-SQL)