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  158 198 174  
2   李四  188 179 178  
3   张三  188 168 178