Sql 选择DISTINCT-access

我正在尝试在Access中创建一个查询，该查询将返回日期范围内的成员计数

TransactionTable
TranID (pk)
ActivityID (fk)
MemberID (fk)
LocationID (fk)
TranDate
TranHours

这似乎有效：

SELECT Count(*) AS UniqueMembers 
FROM   (SELECT DISTINCT transid 
        FROM   transactiontable) AS T; 

但当我添加参数日期范围时，我开始感到困惑

SELECT Count(*) AS UniqueMembers 
FROM   (SELECT DISTINCT transid 
        FROM   transactiontable) AS T 
WHERE  ( transactiontable.trandate ) BETWEEN 
       [enter the start date:] AND [enter the end date:]; 

---

将查询更改为在子select中包含WHERE子句

差不多

SELECT Count(*) AS UniqueMembers
FROM    (
            SELECT DISTINCT TransID 
            FROM TransactionTable 
            WHERE (TransactionTable.TranDate) Between [Enter the start date:] And [Enter the end date:]
        )  AS T;