sql1 = "Select * From tqhz Main Left Join ( Select f02,f03,Sum(f05)as f01 From tqsrGroup By f02,f03 )Tmp On Main.f02=Tmp.f02 and Main.f03=Tmp.f03 Left Join ( Select t02,t03,Sum(t04) as t04 From tqzc Group By t02,t03)Tmp1 On Main.f02=Tmp1.t02 and Main.f03=Tmp1.t03"