如何在"Where"子句中使用"and"和"or"

Question

我有一个基于一组条件收集信息的查询.基本上我想知道一个位置当天是否支付了超过50美元或评论部分中有"过滤器"一词......

我的查询是:

SELECT        Store_Id, Paid_Out_Amount, Paid_Out_Comment, Paid_Out_Datetime, Update_UserName, Till_Number
FROM            Paid_Out_Tb
WHERE        (Store_Id = 1929) AND (Paid_Out_Datetime >= DATEADD(day, DATEDIFF(day, 0, GETDATE()) - 1, 0)) AND (Paid_Out_Datetime < DATEADD(day, DATEDIFF(day, 0, 
                         GETDATE()), 0)) AND (Paid_Out_Amount > 50) OR
                         (Paid_Out_Comment LIKE N'%' + 'Filter' + '%')

问题是它返回460结果,应该只返回2.

Answer 1

您需要将Paid_Out_Amoutn和Paid_Out_Comment条件包装在第二组括号中:

SELECT Store_Id, Paid_Out_Amount, Paid_Out_Comment, Paid_Out_Datetime, 
    Update_UserName, Till_Number 
FROM Paid_Out_Tb 
WHERE (Store_Id = 1929) AND (Paid_Out_Datetime >= 
    DATEADD(day, DATEDIFF(day, 0, GETDATE()) - 1, 0)) AND 
    (Paid_Out_Datetime < DATEADD(day, DATEDIFF(day, 0, GETDATE()), 0)) AND 
    (
        (Paid_Out_Amount > 50) OR (Paid_Out_Comment LIKE N'%' + 'Filter' + '%')
    )

Answer 2

这实际上取决于你使用的是什么.您的Paid_Out_Amount大于50或Paid_Out_Amount类似于N%Filter%.在你的子句中添加一些括号

WHERE 
(
    (1 = 1)
    AND
    (2 = 2)
)
OR
( 3 = 3 )

Answer 3

SELECT        Store_Id, Paid_Out_Amount, Paid_Out_Comment, Paid_Out_Datetime, Update_UserName, Till_Number
FROM            Paid_Out_Tb
WHERE        (Store_Id = 1929) AND (Paid_Out_Datetime >= DATEADD(day, DATEDIFF(day, 0, GETDATE()) - 1, 0)) AND (Paid_Out_Datetime < DATEADD(day, DATEDIFF(day, 0, 
                         GETDATE()), 0)) AND (Paid_Out_Amount > 20) OR
                         (Store_Id = 1929) AND (Paid_Out_Datetime >= DATEADD(day, DATEDIFF(day, 0, GETDATE()) - 1, 0)) AND (Paid_Out_Datetime < DATEADD(day, DATEDIFF(day, 0, 
                         GETDATE()), 0)) AND (Paid_Out_Comment LIKE N'%' + 'Filter' + '%')

我结合了您的一些建议，并得出了上述内容。这有效。谢谢！