语句查表的外键，表名，列名，引用的表名和引用的列名

;WITH  CTE          AS (              SELECT  OBJECT_NAME(constraint_object_id) Constraint_Name , OBJECT_NAME(parent_object_id) Table_Name , C.name Column_Name              FROM    sys.foreign_key_columns FK              INNER JOIN sys.columns C              ON      FK.parent_object_id = C.object_id                      AND FK.parent_column_id = C.column_id             )    SELECT  C.Constraint_Name , C.Table_Name , C.Column_Name , OBJECT_NAME(FK.referenced_object_id) Referenced_Table_Name , SC.name Referenced_Column_Name    FROM    CTE C    INNER JOIN sys.foreign_key_columns FK    ON      C.Constraint_Name = OBJECT_NAME(FK.constraint_object_id)    INNER JOIN sys.columns SC    ON      FK.referenced_object_id = SC.object_id            AND FK.referenced_column_id = SC.column_i