drop table ABC; create table ABC(id number,name varchar2(50),kcName varchar2(50),score number);insert into ABC values(1,'张三','语文',88);insert into ABC values(2,'张三','数学',68);insert into ABC values(3,'张三','英语',78);insert into ABC values(4,'李四','英语',78);insert into ABC values(5,'李四','语文',88);insert into ABC values(6,'李四','数学',79);insert into ABC values(7,'王五','英语',74);insert into ABC values(8,'王五','语文',58);insert into ABC values(9,'王五','数学',98);select * from abc;select abc.Name,sum(decode(kcName,'语文',SCORE,null)) 语文, sum(decode(kcName,'数学',SCORE,null)) 数学, sum(decode(kcName,'英语',SCORE,null)) 英语 from abc group by abc.name;结果: NAME 语文 数学 英语1 王五 158 198 1742 李四 188 179 1783 张三 188 168 178
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