delete sort1 from a
delete sort2 from b
（a=b)
怎样把这两个语句和成一个语句！现时也求些情况一的更新语句！
------解决方案--------------------------------------------------------
delete sort1 from a
union
delete sort2 from b
//****您也可以放到存储过程里面去哈.
------解决方案--------------------------------------------------------
delete 只能一次册除一张表