how many aggregations should be added, the more the better?

Question

Answer 1

Hi @ZengDingding ,

Everyone's situation is different and there is no way we can give the best advice. You can refer to my answer in this case.
https://learn.microsoft.com/en-us/answers/questions/1127990/ssashow-to-add-the-aggregations-by-referencing-the.html

Best regards,
Seeya

---

If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Answer 2

It's similar to indexes in relational databases, many indexes can (!) speed up queries, but slow down writes; in SSAS cube processing.
See Aggregations and Aggregation Designs