题目内容
(请给出正确答案)
[单选题]
查询students表每个学生的年级值,其代码如下:SELECTsnoAS学号,snameAS姓名,()AS年级FROMstudents;()。
A.YEAR(NOW())-in_year
B.YEAR(NOW())-in_year+1
C.YEAR(NOW())-in_year+IF(MONTH(NOW())<9,0,1)
D.NOW()-in_year
提问人:网友Dume2021
发布时间:2022-01-07
A.YEAR(NOW())-in_year
B.YEAR(NOW())-in_year+1
C.YEAR(NOW())-in_year+IF(MONTH(NOW())<9,0,1)
D.NOW()-in_year
SELECT()FROMstudents;
括号中的内容是?()。
A.*
B.sno,sname,dept
C.snoas学号,snameas姓名,deptas所在系
D.以上都不对
A、select * into stufemal from student
B、select * into stufemal from student where ssex='女'
C、select * from student where ssex='女' into stufemal
D、select * from student into stufemal
B.政策允许对某些事情有酌情处理的自由
C.所有的政策都是陈述书或理解书
D.政策支持了分权,同时也支持上级主管对该项分权的控制
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