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).

See Also