摘要：
select o.id oid, o.orderno oorderno, o.uid uid, u.name uname, u.age uage from orders o left outer join users u on o.uid=u.id where o.id=#{id} select o 阅读全文
摘要：
select o.id oid, o.orderno oorderno, o.uid uid, u.name uname, u.age uage from orders o left outer join users u on o.uid=u.id where o.id=#{id} 阅读全文