I want to display the count of a criteria based on its occurrence for a time period and its below time periods.
Let's say this is the table layout
Key1 | Key2 | Key3 | emailSent_Date |
08/01/2013| 0097A | 0097A | 07/01/2013 |
07/01/2013| 0097A | 0097A | 08/01/2013 |
06/01/2013| 0097A | 0097A | 08/01/2013 |
Desired output : SQL query to get the count of key2 and key3 occurrences for a time period and its below timperiods. The count has to be consecutive.
Here, for august month key2 and key3 occurred for 3 times. But, for the july month, key2 and key3 occurred for two times only. Sorry if I made it complex.
Key1 | Key2 | Key3 | emailSent_Date | Count |
08/01/2013| 0097A | 0097A | 07/01/2013 | 3 |
07/01/2013| 0097A | 0097A | 08/01/2013 | 2 |
06/01/2013| 0097A | 0097A | 08/01/2013 | 1 |
I think this is exactly what row_number()
does:
select key1, key2, key3, emailSent_Date,
row_number() over (partition by key2, key3 order by key1) as "Count"
from "table";
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.