Mysql 在where子句中查找第一个

我在这里搜索过，也许我不知道写问题的确切方式，但找不到答案

我需要从click_stats中找到所有用户的积分总和，其中source='reward'，这些用户至少声明了3个促销代码中的一个，并且显示了总点击次数。有很多比3，但简化了我需要努力满足张贴标准

表：

+---------------------------------------------+
| click_stats                                 |
+----+---------+--------+--------+------------+
| ID | Credits | Userid | Source | Clicked    |
+----+---------+--------+--------+------------+
| 1  | 10      | jon    | reward | 1602216005 |
+----+---------+--------+--------+------------+
| 2  | 5       | bob    | reward | 1602216504 |
+----+---------+--------+--------+------------+
| 3  | 5       | jon    | reward | 1602216137 |
+----+---------+--------+--------+------------+
| 4  | 5       | bob    | reward | 1602216138 |
+----+---------+--------+--------+------------+
| 5  | 10      | jon    | reward | 1602216139 |
+----+---------+--------+--------+------------+
| 6  | 5       | jon    | reward | 1602216140 |
+----+---------+--------+--------+------------+
| 7  | 10      | bob    | reward | 1602216150 |
+----+---------+--------+--------+------------+
| 8  | 10      | jon    | reward | 1602216150 |
+----+---------+--------+--------+------------+
+----+---------+--------+--------+------------+
| 9  | 10      | sue    | reward | 1602216150 |
+----+---------+--------+--------+------------+
+----+---------+--------+--------+------------+
| 10  | 10     | sue    | prize  | 1602216150 |
+----+---------+--------+--------+------------+

我的问题是：

SELECT 
    click_stats.userid  as Name, 
    sum(credits) as TotalClicks 
  FROM click_stats
    JOIN promo_used 
    ON click_stats.userid = promo_used.userid
    JOIN promo_codes 
        ON promo_used.promoid = promo_codes.id
WHERE
   click_stats.source = 'reward' 
   and FROM_UNIXTIME(clicked) > '2020-10-09' 
   and (promo_codes.name like '%forever%' 
        or promo_codes.name like 'novgfy%')
group by 
   Name
having 
   TotalClicks > 10

运行查询时的结果（返回总点击数*使用的促销代码数）：

我想要的结果（仅限点击总数）：

---

问题是（我怀疑）每次找到与promo_code.name匹配的数据时，它都会对click_统计数据求和。我只需要知道其中一个是否已被使用，然后返回该用户的总点击数。

不要将

单击统计数据

加入到其他表中，因为您将获得的行数乘以一个因子，该因子等于

促销使用的每个用户的行数

而是使用

中的运算符

来过滤用户：

SELECT Userid, SUM(Credits) TotalClicks 
FROM click_stats
WHERE source = 'reward' 
  AND FROM_UNIXTIME(clicked) > '2020-10-09'
  AND Userid IN (
    SELECT pu.Userid 
    FROM promo_used pu INNER JOIN promo_codes pc
    ON pc.id = pu.promoid
    WHERE pc.code like '%forever%' OR pc.code like 'novgfy%' 
  )
GROUP BY Userid 
HAVING TotalClicks > 10

或：

请参阅。

结果:

请提供样本数据和预期结果。您的查询引用了4个表，我们对此一无所知。谢谢GMB，我已经在我的原始问题中添加了更多细节。按照@GMB的要求，请提供示例数据和预期结果。这是这个网站需要的一部分。我添加了一个预期结果的示例。不确定需要什么样的样本数据。如果这不正确，我将删除该问题并继续搜索，当我了解它如何更好地工作时，返回这里。谢谢你的帮助，谢谢！这就是我要找的。
SELECT 
    click_stats.userid  as Name, 
    sum(credits) as TotalClicks 
  FROM click_stats
    JOIN promo_used 
    ON click_stats.userid = promo_used.userid
    JOIN promo_codes 
        ON promo_used.promoid = promo_codes.id
WHERE
   click_stats.source = 'reward' 
   and FROM_UNIXTIME(clicked) > '2020-10-09' 
   and (promo_codes.name like '%forever%' 
        or promo_codes.name like 'novgfy%')
group by 
   Name
having 
   TotalClicks > 10

+--------------------+
| Results            |
+------+-------------+
| Name | TotalClicks |
+------+-------------+
| bob  | 60          |
+------+-------------+
| jon  | 80          |
+------+-------------+

+--------------------+
| Expected Results   |
+------+-------------+
| Name | TotalClicks |
+------+-------------+
| bob  | 20          |
+------+-------------+
| jon  | 40          |
+------+-------------+

SELECT Userid, SUM(Credits) TotalClicks 
FROM click_stats
WHERE source = 'reward' 
  AND FROM_UNIXTIME(clicked) > '2020-10-09'
  AND Userid IN (
    SELECT pu.Userid 
    FROM promo_used pu INNER JOIN promo_codes pc
    ON pc.id = pu.promoid
    WHERE pc.code like '%forever%' OR pc.code like 'novgfy%' 
  )
GROUP BY Userid 
HAVING TotalClicks > 10

SELECT Userid, SUM(Credits) TotalClicks 
FROM click_stats
WHERE source = 'reward' 
  AND FROM_UNIXTIME(clicked) > '2020-10-09'
  AND Userid IN (
    SELECT pu.Userid FROM promo_used pu 
    WHERE EXISTS (
      SELECT 1 FROM promo_codes pc
      WHERE pc.id = pu.promoid AND (pc.code like '%forever%' OR pc.code like 'novgfy%' )
    ) 
  )
GROUP BY Userid
HAVING TotalClicks > 10

> Userid | TotalClicks
> :----- | ----------:
> bob    |          20
> jon    |          40