//////////////////查询指定表外键约束
selecta.name as 约束名,object_name(b.parent_object_id) as 外键表,d.name as 外键列,object_name(b.referenced_object_id) as 主健表,c.name as 主键列from sys.foreign_keys Ainner join sys.foreign_key_columns B on A.object_id=b.constraint_object_idinner join sys.columns C on B.parent_object_id=C.object_id and B.parent_column_id=C.column_id inner join sys.columns D on B.referenced_object_id=d.object_id and B.referenced_column_id=D.column_id where object_name(B.referenced_object_id)=‘要查询的表名‘;

sql查询指定表外键约束