使用mysql统计图书数量
我想计算10天内的转换率。如何执行表1中的表2?确定转换的逻辑是,在10天的时间间隔内,在图书日期之前是否有印象?对于123 cookie,书的日期是6/16,印象是6/5,超过10天。数到0使用mysql统计图书数量,mysql,Mysql,我想计算10天内的转换率。如何执行表1中的表2?确定转换的逻辑是,在10天的时间间隔内,在图书日期之前是否有印象?对于123 cookie,书的日期是6/16,印象是6/5,超过10天。数到0 table 1 +-----------+------+------+ | cookie_id | imp | book | +-----------+------+------+ | 123 | | 6/1 | | 123 | | 6/10 | |
table 1
+-----------+------+------+
| cookie_id | imp | book |
+-----------+------+------+
| 123 | | 6/1 |
| 123 | | 6/10 |
| 123 | | 6/11 |
| 123 | | 6/12 |
| 123 | | 6/16 |
| 123 | 6/2 | |
| 123 | 6/5 | |
| 456 | 6/2 | |
| 456 | | 6/20 |
| 789 | | 6/19 |
| 789 | 6/10 | |
+-----------+------+------+
table 2
+-----------+------+------+------------+
| cookie_id | imp | book | count book |
+-----------+------+------+------------+
| 123 | | 6/1 | 0 |
| 123 | | 6/10 | 1 |
| 123 | | 6/11 | 1 |
| 123 | | 6/12 | 1 |
| 123 | | 6/16 | 0 |
| 123 | 6/2 | | |
| 123 | 6/5 | | |
| 456 | 6/2 | | |
| 456 | | 6/20 | 0 |
| 789 | | 6/19 | 1 |
| 789 | 6/10 | | |
+-----------+------+------+------------+