try:
=======================================
select a.id as aid,a.name as aname,max(b.price) as bprice from b left join a on a.id=b.a_id group by aid;
=======================================
select a.id as aid,a.name as aname,max(b.price) as bprice from b left join a on a.id=b.a_id group by aid;
解决方案 »
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