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查看11 | 回复2 | 2012-12-19 16:04:48 | 显示全部楼层 |阅读模式
1.select s_number,score+5 as s_score from t_score2.select s_number from t_score where score between 60 and 803.select * from t_student where t_number like '0_0*[1-3]'4.select count(distinct score) where score >80 要是你给出表结构估计好搞点...
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千问 | 2012-12-19 16:04:48 | 显示全部楼层
select s_number,score+5 form t_score;select stu.s_number where s.s_number=stu.s_number,s.score between(60,80)from t_score s,t_student stu;...
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