取消透视两列并按群组分组

Question

情况：

我有一个有 5 列的表格：

• 群组（NULL、1、2、3、4）
• 状态 (0,1)
• 电子邮件
• Week_Number（该周登录的电子邮件）
• Week_Number2（Week_Number 在 Week_Number2 期间登录的电子邮件）

我的主要查询产生了类似的结果：

+--------+--------+---------------+-------------+--------------+
| cohort | status |     email     | week_number | week_number2 |
+--------+--------+---------------+-------------+--------------+
| null   |      0 | aaa@email.com |           5 | 6            |
| 1      |      1 | bbb@email.com |           5 | 6            |
| 1      |      1 | ccc@email.com |           5 | 6            |
| 2      |      0 | ddd@email.com |           5 | NULL         |
| 3      |      1 | eee@email.com |           5 | 6            |
| 3      |      0 | fff@email.com |          5  | 6            |
| 4      |      0 | ggg@gmail.com |           5 | NULL         |
+--------+--------+---------------+-------------+--------------+

目标：

基本上，我想按群组、状态对结果进行分组，并在两周内 一列并添加总计数列。 我的输出应显示以下内容：

+--------+--------+-------------+-------------+
| cohort | status | week        | total_count |
+--------+--------+-------------+-------------+
| null   |      0 |           5 |           1 |
| null   |      0 |           6 |           1 |
| 1      |      1 |           5 |           2 |
| 1      |      1 |           6 |           2 |
| 2      |      0 |           5 |           1 |
| 3      |      0 |           5 |           1 |
| 3      |      0 |           6 |           1 |
| 3      |      1 |           5 |           1 |
| 3      |      1 |           6 |           1 |
| 4      |      0 |           5 |           1 |
+--------+--------+-------------+-------------+

我的第一个输出是：

SELECT 
     t3.Cohort
    ,t3.[Status]
    ,t1.Email
    ,t1.Week_Number
    ,t2.Week_Number2
FROM #table     AS t1     -- Gets first week info
LEFT JOIN #table2   AS t2 -- Gets second week info
    ON t1.Email=t2.Email
LEFT JOIN #table3   AS t3 -- Gets status and cohort
    ON t1.Email=t3.Email

Answer 1

我会使用apply 来取消透视数据。然后你似乎想要聚合：

select t.Cohort, t3.[Status], v.week, count(*)
from #table t cross apply
     (values (t.Week_Number), (t.Week_Number2)) v(week)
where v.week is not null
group by t.Cohort, t3.[Status], v.week;