troubleshooting Question

SQL 2008 calculate AVG on computed column

Avatar of drl1
drl1Flag for United Kingdom of Great Britain and Northern Ireland asked on
Microsoft SQL Server 2008
20 Comments1 Solution511 ViewsLast Modified:
I have a computed column (MyColumn) defined as decimal (4,2) which calls a user-defined function. The function calculates a score (think of it as a credit score) based on transactional activity in two other tables.

The computed column is non deterministic and so the data is non persistent. I have 200,000+ rows (users who's credit score is calculated by the computed column and which changes daily). I want to calculate AVG(MyColumn) however the processing time would likely take several hours. What is the best way to calculate AVG(MyColumn) given that the data upon which it needs to calculate is not persistent?
Join our community to see this answer!
Unlock 1 Answer and 20 Comments.
Start Free Trial
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 20 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros