SELECT mattressid, mattresscode, mattress_width, mattress_length, mattress_height, parentid From u_mattress u_mattress.parentid = @arg_mattressid OR parentid = ( SELECT parentid FROM u_mattress WHERE mattressid = @arg_mattressid and parentid > 0 ) mattressid DESC 床垫宽/CM 床垫长/CM 床垫高/CM 报价唯一码