sys.foreign_key_columns (Transact-SQL)

Contains a row for each column, or set of columns, that comprise a foreign key.

Column name

Data type

Description

constraint_object_id

int

ID of the FOREIGN KEY constraint.

constraint_column_id

int

ID of the column, or set of columns, that comprise the FOREIGN KEY (1..n where n=number of columns).

parent_object_id

int

ID of the parent of the constraint, which is the referencing object.

parent_column_id

int

ID of the parent column, which is the referencing column.

referenced_object_id

int

ID of the referenced object, which has the candidate key.

referenced_column_id

int

ID of the referenced column (candidate key column).

Permissions

In SQL Server 2005 and later versions, the visibility of the metadata in catalog views is limited to securables that a user either owns or on which the user has been granted some permission. For more information, see Metadata Visibility Configuration.