MySQL，像stations和最早的日期问题一样计数

对于MySQL来说是相当陌生的，我对如何构建以下查询有点迷茫

下表显示了我希望我的预期输出是什么样的

+---------+------------+-----------------+-------+----------+------------+
| Account |  Inv Date  |   Description   | Value | Inv Item |  Eff From  |
+---------+------------+-----------------+-------+----------+------------+
|      12 | 2018-08-14 | Unlimited (SV4) | 5.99  |  3056746 | 2018-08-02 |
|      12 | 2018-08-14 | Unlimited (SV4) | 5.99  |  3056748 | 2018-08-02 |
|      15 | 2018-09-14 | Unlimited (GB2) | 7.99  |  3187748 | 2018-09-07 |
|      15 | 2018-09-14 | Unlimited (GB1) | 7.26  |  3187749 | 2018-09-07 |
+---------+------------+-----------------+-------+----------+------------+

我想看到帐户有多个描述，如“无限”，在“投资日期”只需要显示每个帐户最早的日期。并且“Eff from”必须是从帐户上的“状态”第一次处于“活动”状态时开始

这是我目前的代码，我还包括了我试图加入的表

SELECT
    AA.Account,
    MIN(II.InvDate),
    ST.Description,
    ST.Value,
    ST.InvItem,
    MIN(AA.EffFrom)
FROM db.tblAccountStatus AA
    INNER JOIN db.tblInvoiceID II ON II.Account = AA.Account
    INNER JOIN db.tblInvoiceStatus ST ON ST.InvID = II.InvID
WHERE AA.Status = 'Active'
    AND ST.Description LIKE '%Unlimited%'
        GROUP BY ST.InvItem HAVING COUNT(II.InvDate) >1

---

内部连接具有最早日期记录的db.tblInvoiceID似乎很好，如下所示

SELECT
    AA.Account,
    II.InvDate,
    ST.Description,
    ST.Value,
    ST.InvItem,
    AA.EffFrom
FROM db.tblAccountStatus AA
    INNER JOIN (
        SELECT InvID, Account, MIN(InvDate) AS InvDate FROM db.tblInvoiceID
        GROUP BY Account
    ) II ON II.Account = AA.Account
    INNER JOIN db.tblInvoiceStatus ST ON ST.InvID = II.InvID
WHERE AA.Status = 'Active'
    AND ST.Description LIKE '%Unlimited%'
        GROUP BY ST.InvItem

以下是我的输出。
虽然您的预期输出不包括

Account=17

，但我无法从您的问题中理解情况。如果你有其他条件，请教我

+---------+------------+------------------+-------+---------+------------+
| Account | InvDate    | Description      | Value | InvItem | EffFrom    |
+---------+------------+------------------+-------+---------+------------+
|      12 | 2018-08-14 | Unlimited (SV4)  |  5.99 | 3056746 | 2018-08-02 |
|      12 | 2018-08-14 | Unlimited (SV4)  |  5.99 | 3056748 | 2018-08-02 |
|      17 | 2018-09-15 | Unlimited (SV1)  |  5.99 | 3186788 | 2016-04-28 |
|      15 | 2018-09-14 | Unlimited (GB2)  |  7.99 | 3187748 | 2018-09-07 |
|      15 | 2018-09-14 | Unlimited (GB1)  |  7.26 | 3187749 | 2018-09-07 |
+---------+------------+------------------+-------+---------+------------+
5 rows in set (0.00 sec)

---

不要将

用作列别名。这是一个关键词，非常令人困惑，尤其是当使用
as
关键词来定义别名时。是的，我现在改变了这一点。我一贴出我的问题就注意到了。谢谢。你的MySQL服务器版本是什么？这是一个窗口函数问题，因为我们正在尝试确定聚合值，而不将其分组为单行抱歉，我当时不在电脑旁，因此无法检查，但我现在回来了。版本：5.6.37-LOG能否请您为表格提供
SHOW CREATE TABLE
语句。或者，您可以设置SQL FIDLE或DB FIDLE。这将使用会话变量来解决，它将需要相当多的测试，这使我接近我想要的。我用excel进一步过滤数据。
db.tblAccountStatus
+---------+--------+------------+------------+
| Account | Status |  Eff From  |   Eff To   |
+---------+--------+------------+------------+
|      12 | Active | 2018-08-02 | 2018-09-16 |
|      12 | Active | 2018-09-17 | 2018-09-28 |
|      12 | Active | 2018-09-29 | NULL       |
|      15 | Active | 2018-09-07 | 2018-09-16 |
|      15 | Closed | 2018-09-17 | NULL       |
|      17 | Active | 2016-04-28 | NULL       |
|      19 | Active | 2015-05-05 | NULL       |
+---------+--------+------------+------------+

SELECT
    AA.Account,
    II.InvDate,
    ST.Description,
    ST.Value,
    ST.InvItem,
    AA.EffFrom
FROM db.tblAccountStatus AA
    INNER JOIN (
        SELECT InvID, Account, MIN(InvDate) AS InvDate FROM db.tblInvoiceID
        GROUP BY Account
    ) II ON II.Account = AA.Account
    INNER JOIN db.tblInvoiceStatus ST ON ST.InvID = II.InvID
WHERE AA.Status = 'Active'
    AND ST.Description LIKE '%Unlimited%'
        GROUP BY ST.InvItem

+---------+------------+------------------+-------+---------+------------+
| Account | InvDate    | Description      | Value | InvItem | EffFrom    |
+---------+------------+------------------+-------+---------+------------+
|      12 | 2018-08-14 | Unlimited (SV4)  |  5.99 | 3056746 | 2018-08-02 |
|      12 | 2018-08-14 | Unlimited (SV4)  |  5.99 | 3056748 | 2018-08-02 |
|      17 | 2018-09-15 | Unlimited (SV1)  |  5.99 | 3186788 | 2016-04-28 |
|      15 | 2018-09-14 | Unlimited (GB2)  |  7.99 | 3187748 | 2018-09-07 |
|      15 | 2018-09-14 | Unlimited (GB1)  |  7.26 | 3187749 | 2018-09-07 |
+---------+------------+------------------+-------+---------+------------+
5 rows in set (0.00 sec)