使用NOT IN時，BETWEEN條件不起作用

Question

SELECT * 
FROM Customer 
INNER JOIN Ledger Entry on [No_] = [Customer No_] 
WHERE No_ NOT IN ([Posting Date] between '2013-10-01' and '2013-10-31')

BETWEEN條件不起作用。

Answer 1

這不是如何not in的作品，你比較No_這似乎是Id客戶與Posting Date所以這應該失敗。

我想你想這樣的事情：

SELECT * 
FROM Customer c 
inner join [Ledger Entry] le on c.[No_] = le.[Customer No_] 
where c.[No_] not in (
         select l.[Customer No_] 
         from [Ledger Entry] l 
         where l.[Posting Date] between '2013-10-01' and '2013-10-31' 
        ) 

但對於這樣的查詢應該簡化爲：

SELECT * 
FROM 
Customer c 
inner join [Ledger Entry] le on c.[No_] = le.[Customer No_] 
where le.[Posting Date] < '2013-10-01' or le.[Posting Date] > '2013-10-31' 

不使用not in和between在所有

Answer 2

首先，你的日期應該與另一個日期類型列進行比較。
其次，根據Aaron Bertrand，你應該避免使用BETWEEN進行日期，你可以通過文章瞭解他是對的。
所以intead，我建議你繼續作爲;

SELECT * FROM Customer 
inner join LedgerEntry 
on Customer.[No_] = LedgerEntry.[Customer No_] 
where LedgerEntry.[Posting Date] < '2013-10-01' and LedgerEntry.[Posting Date] > '2013-10-31'