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CONSTRAINT_COLUMN_USAGE (Transact-SQL)

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.

Column name Data type Description

TABLE_CATALOG

nvarchar(128)

Table qualifier.

TABLE_SCHEMA

nvarchar(128)

Name of schema that contains the table owner.

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.

CONSTRAINT_NAME

nvarchar(128)

Constraint name.

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