MYSQL，需要所有日期和第一个日期的列表

很抱歉问这么简单的问题，但我需要一份所有客户交易的列表，该交易的日期，以及他们第一次交易的日期。我知道下面的代码不起作用，但我正在看是否有人能给我指出正确的方向。谢谢

SELECT 
    Location, Date, ?Min(Date)?
FROM
    Transactions

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您需要使用获取第一个事务日期的子查询连接表

SELECT t.Location, t.Date, t1.MinDate
FROM Transactions AS t
JOIN (
    SELECT Location, MIN(Date) AS MinDate
    FROM Transactions
    GROUP BY Location
) AS t1 ON t.Location = t1.Location

SELECT t.Location, t.Date, t1.MinDate
FROM Transactions AS t
JOIN (
    SELECT Location, MIN(Date) AS MinDate
    FROM Transactions
    GROUP BY Location
) AS t1 ON t.Location = t1.Location