THIS TOPIC APPLIES TO: yesSQL Server (starting with 2008)yesAzure SQL DatabaseyesAzure SQL Data Warehouse yesParallel Data Warehouse

Returns one row for each CHECK constraint in the current database. 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 nameData typeDescription
CONSTRAINT_CATALOGnvarchar(128)Constraint qualifier.
CONSTRAINT_SCHEMAnvarchar(128)Name of the schema to which the constraint belongs.

 ** Important ** Do not use INFORMATION_SCHEMA views to determine the schema of an object. The only reliable way to find the schema of a object is to query the sys.objects catalog view.
CONSTRAINT_NAMEsysnameConstraint name.
CHECK_CLAUSEnvarchar(4000)Actual text of the Transact-SQL definition statement.

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

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