小编Sri*_*Sri的帖子

这是SQL查询:

MERGE  tblProductsSold

USING tblOrders on tblOrders.OrderID = tblProductsSold.txtOrderID

WHEN NOT MATCHED THEN 

Insert ( txtOrderID, txtOrderdate, txtPartno, txtQty)  
values 
(SELECT tblItemsOnOrder.txtOrderID, 
 tblOrders.txtDateTime, 
 tblItemsOnOrder.txtPartNO, 
 tblItemsOnOrder.txtQTY
FROM tblOrders  INNER JOIN tblItemsOnOrder 
ON tblOrders.OrderID = tblItemsOnOrder.txtOrderID
WHERE tblOrders.txtIsConfirmed = '1'
)

OUTPUT $action ;

所需结果:需要导入表中Products尚未包含的订单tblProductsSold