select sno, nvl(to_char(sum(decode(cno,'c001',score))),'-') c001, nvl(to_char(sum(decode(cno,'c002',score))),'-') c002, nvl(to_char(sum(decode(cno,'c003',score))),'-') c003,avg(score) 平均分,sum(score) 总成绩 from sc group by sno;
结果：
posted on
2016-09-23 11:25风吹羽
阅读(236)
评论(0)
编辑收藏举报
