A.①② B.①③ C.②③ D.②④
A.delete * from 天氣預(yù)報(bào) where’福州’ B.Update 天氣預(yù)報(bào) where 城市=’福州’ C.delete 天氣預(yù)報(bào) where 城市=’福州’ D.select from 天氣預(yù)報(bào) where 城市=’福州’
A.排序(Sort) B.求和(Sum) C.求最大值(Max) D.求最小值(Min)