Export (0) Print
Expand All

CONSTRAINT_COLUMN_USAGE (Transact-SQL)

 

Applies To: SQL Server 2014, SQL Server 2016 Preview

Returns one row for each column in the current database that has a constraint defined on the column. 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.

Applies to: SQL Server (SQL Server 2008 through current version), Azure SQL Database, Azure SQL Data Warehouse Public Preview.

Column name

Data type

Description

TABLE_CATALOG 

nvarchar(128)

Table qualifier.

TABLE_SCHEMA

nvarchar(128)

Name of schema that contains the table owner.

System_CAPS_importantImportant

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.

TABLE_NAME 

nvarchar(128)

Table name.

COLUMN_NAME 

nvarchar(128)

Column name.

CONSTRAINT_CATALOG 

nvarchar(128)

Constraint qualifier.

CONSTRAINT_SCHEMA 

nvarchar(128)

Name of schema that contains the constraint.

System_CAPS_importantImportant

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_NAME 

nvarchar(128)

Constraint name.

Was this page helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

ADD
Show:
© 2015 Microsoft