黑马程序员——数据库视频笔记

之前有过数据库基础，所以数据库的做的有点少
use stu
insert into T_Student(Name,Age)
values('Y%K',29),
      ('kkkk',23),
      ('aaa啊啊',20),
      ('saha1',23),
      ('aadfaa啊啊',20),
      ('haha2',23),
      ('awetra啊啊',20),
      ('hgha2',23),
      ('aghj',20),
      ('haha4',23),
      ('aaaghj啊5',80)
      
select Top (50) percent  * from T_Student

delete from T_Student where Age=23

update T_Student set Age=Age+100,AiHao='Speak' where Age<25

select * from T_Student where Name='YZK'

select Name as 姓名,GETDATE() from T_Student

select MAX(Age) as maxAge,MIN(Age)  as minAge from T_Student

select COUNT(*),MIN(Age) from T_Student where Age>100

select top 6 * from T_Student

select * from T_Student

select * from T_Student where Name like 'Y%'

select * from T_Student where Name like 'a%k'

select * from T_Student where Name like '%k%'


显示刚插入数据的id
insert into T_Student(Name,Age) output inserted.Id values('元芳',180)