我使用一个查询来获取结果的GridView案例语句的WHERE子句
SELECT DISTINCT
Order_Header.Id, Order_Header.Payment_Id, Order_Header.Order_No
FROM
Order_Header
INNER JOIN
Order_Shipping_Detail ON Order_Header.Id = Order_Shipping_Detail.Order_Id
LEFT OUTER JOIN
cod_orders ON cod_orders.Order_Id = Order_Header.Id
WHERE
Status = 2
不过,我需要返回所有的订单,其中状态= 2和订单,其中付款编号是鳕鱼(也状态= 2 )和cod_orders.Is_confirmed = 1。
我可以为此使用CASE语句吗?
但是,如果我尝试这样做,我正在实现我的结果。
SELECT DISTINCT Order_Header.Id, order_Header.Payment_Method_Id,Order_Header.Order_No
FROM Order_Header INNER JOIN Order_Shipping_Detail
ON Order_Header.Id = Order_Shipping_Detail.Order_Id
LEFT JOIN cod_orders
ON cod_orders.Order_Id = Order_Header.Id
WHERE Status = 2 and Payment_Method_Id != 6
UNION
Select DISTINCT Order_Header.Id, order_Header.Payment_Method_Id,Order_Header.Order_No
FROM Order_Header INNER JOIN Order_Shipping_Detail
ON Order_Header.Id = Order_Shipping_Detail.Order_Id
LEFT JOIN cod_orders
ON cod_orders.Order_Id = Order_Header.Id
WHERE Status = 2 AND cod_orders.Is_Confirmed = 1
我可以将它们合并为一个查询吗?
它是更好,如果你提供的样本数据和有关 –
预期输出你的'WHERE'试图'CASE'声明? – Fabio