我不太确定，但是我认为，如果从From中删除括号，它应该可以工作: select * from person as p inner join company as c on p.p_id=c.p_id
inner join contact as ct on p.p_id=ct.p_id where p.p_id=?;

I'm not absolutely sure, but I think it should work if you remove brackets from From : select * from person as p inner join company as c on p.p_id=c.p_id
inner join contact as ct on p.p_id=ct.p_id where p.p_id=?;