SQL 多表联合查询

select distinct a.* from po_price_list a left join po_price_list_company pp on  pp.AID_PRICE_LIST_PO =a.aid  left join po_price_list_item c on c.AID_PRICE_LIST = a.AID

where  pp.aid_company='000i09c6myqyfdk7' and c.AID_PRICE_LIST is not Null;