这个实例里面的表结构参见《建表,插入标识列,,自动生成id》一文
use yuyongTestinsert into student (name,info)values(‘qwe’,’qwe’);insert into student (name,info)values(‘hhh’,’hhh’), (‘iii’,’iii’), (‘jjj’,’jjj’);select * from student;–对于包含标识列的表, @@IDENTITY总是返回标识列值的最大者select @@IDENTITY;delete from student where number>20–@@rowcount;返回其紧邻的上一句SQL语句影响的行数select @@rowcount;
重新开始吧!下次我会吸取教训,不让自己犯同样的错误的;