invoice_hearing_aids t2 WHERE t2.contact_id = invoice_hearing_aids.contact_id) ) sel
LEFT JOIN hearing_aid_makes makes ON makes.id= sel.make_id
LEFT JOIN contacts ON contacts.id = sel.
这个想法是,在给定的一天中有两种用餐选择,例如:10/02/16 meal id 4 OR meal id 12select * from meals JOIN menu ON meals.id = menu.option1 AND meals.id=menu.option2
但每次我运行这个命令时,我都会收到一条错误消息
我想使用join和left join来显示我的数据库。但看起来效果不太好。pdt.ProductName,dbpjs.CodeName,ordercustline.id as oid, pdt.LanguageID LEFT JOINproducts ON products.id = ordercustline.ProductID JO
tbl_tickets.Ticket_Category, tbl_orders.PO_Number, tbl_invoice_to.Name AS Dealer_Name FULL INNER JOINtbl_orders ON tbl_tickets.Order_ID=tbl_orders.ID
FULL INNER JOIN tbl_invoice_to ON tbl_tickets.Invoice_To