Question

我想计算同一天订阅和取消订阅服务的总用户数。用户为 MSISDN ，订阅为 OperationType 。如果用户订阅，OperationType = 1，如果用户取消订阅，OperationType =2。用户可以在同一天订阅和取消订阅服务。

订阅：OperationType = 1 退订：OperationType = 2

Structure & Data of tbl_process 参考我的数据。我有两个相同的用户（即MSISDN）进行订阅，后来又取消订阅该服务。

This is my result based on query below. I somehow manage to get list of user that subscribe and unsubscribe on the same day. But now I want to count total user who got 2 OperationType, which is 1 & 2 (this is based on my query).

以下是我的查询：

SELECT DISTINCT(msisdn), operationType
FROM tbl_process
WHERE DATE(RequestTS) = '2019-03-14'
AND STATUS = 3
ORDER BY msisdn;

Answer 1

从中选择DATE，count（*）（选择 date（RequestTs）为DATE， msisdn，计数（不同的操作类型）从 tbl_process t1 分组1 具有count（distinct operationType）> 1 ）被1分组

从中选择计数（distinct msisdn）（选择 date（RequestTs）为DATE， msisdn，计数（不同的操作类型）从 tbl_process t1 分组1 具有count（distinct operationType）> 1 ）被1分组

Answer 2

最终答案。我得到答案了

SELECT SUM(IF(x.sub > 0 AND x.unsub > 0, 1, 0)) AS Daychrn
FROM ( 
	SELECT DISTINCT(msisdn), 
	SUM(IF(operationtype='1', 1, 0)) AS sub, 
	SUM(IF(operationtype='2', 1, 0)) AS unsub 
	FROM tbl_process 
	WHERE processts LIKE '2019-04-14%' 
	AND STATUS =3 
	GROUP BY msisdn
) X;

Answer 3

尝试一下

select 
  count(*) 
from 
  tbl_process t1 
  inner join tbl_process t2 on DATE_FORMAT(t1.RequestTS, '%m-%d') = DATE_FORMAT(t2.RequestTS, '%m-%d') 
  and t1.msisdn = t2.msisdn 
  and t1.operationType = 1 
  and t2.operationType = 2;

计算当天订阅和退订的总用户

3 个答案: