delete from student where s_id >5 该代码执行的是哪项操作?
- A添加记录
- B修改记录
- C删除记录
- D查询记录
delete from student where s_id >5 该代码执行的是哪项操作?
1、A lecture hall is()where students atte
A lecture hall is()where students attend lectures.AthatBone;Cwhich
语句delete from sc表明()A删除sc中的全部记录B删除基本表scC删除基本表sc中的列数据D删除基本表sc中的部分行
3、在Access中,运行SQL命令“delete*from订单where订单I
在Access中,运行SQL命令“delete*from订单where订单ID=10257”后,得到的结果是()。A查询订单ID为10257的记录B复制订单ID为10257的记录C删除订单ID为10257的记录D修改订单ID为10257的记录
4、与“SELECT﹡FROM歌手WHERE NOT(最后得分>9.00
与“SELECT﹡FROM歌手WHERE NOT(最后得分>9.00 OR最后得分<8.00)”等价的语句是( )。AA)SELECT﹡FROM歌手WHERE最后得分BETWEEN 9.00 AND 8.00BB)SELECT﹡FROM歌手WHERE...
5、update student set s_name = ’王军’ where
update student set s_name = ’王军’ where s_id =1 该代码执行的是哪项操作?A添加姓名叫王军的记录B删除姓名叫王军的记录C返回姓名叫王军的记录D更新姓名叫王军的记录
6、Sql语句:select * from students where SNO
Sql语句:select * from students where SNO like ‘010[^0]%[A,B,C]%’,可能会查询出的SNO是()A01053090A#Hm3?B01003090A01C01053090D09D0101A01