sql语句1:
select sum(field1*field2) as newfield from table1 where ...条件1...
sql语句2:
update table1 set field2=(这里的是sql语句1的结果newfield) where ...条件2...
有没人知道怎么把这两个sql语句结结合起来啊?

[[it] 本帖最后由 dh2007 于 2008-3-15 16:24 编辑 [/it]]

update table1 set field2=sum(field1*field2) where 条件1 and 条件2
试试这样