select   oSub.name  AS  [子表名称],  fk.name AS  [外键名称],  SubCol.name AS [子表列名],  oMain.name  AS  [主表名称],  MainCol.name AS [主表列名]from   sys.foreign_keys fk      JOIN sys.all_objects oSub          ON (fk.parent_object_id = oSub.object_id)    JOIN sys.all_objects oMain         ON (fk.referenced_object_id = oMain.object_id)    JOIN sys.foreign_key_columns fkCols         ON (fk.object_id = fkCols.constraint_object_id)    JOIN sys.columns SubCol         ON (oSub.object_id = SubCol.object_id              AND fkCols.parent_column_id = SubCol.column_id)    JOIN sys.columns MainCol         ON (oMain.object_id = MainCol.object_id              AND fkCols.referenced_column_id = MainCol.column_id)