select a.no,a.name,b.subid,b.subname,c.score

select a.no,a.name,b.subid,b.subname,c.score
from a,b,c 
where a.no = c.no and b.subid = c.subid ;
原文地址:https://www.cnblogs.com/feng9exe/p/7460103.html