Month: September 2019

Supporting the LGBTQ #SQLFamily

September 23, 2019 Andy 0

I won’t be at PASS Summit this year, so unlike last year, I won’t be organizing an LGBTQ Meetup at PASS Summit. I’m hoping that even without the meetup, all my LGBTQ #SQLFamily friends will still get together for some fun and networking. Keep scrolling … [Read More]

When to put a non-clustered index on your clustering key

September 3, 2019 Andy 1

There is a corner case where it makes sense to have a non-clustered index “duplicating” the clustered index. If you have a query that frequently scans the table, and ONLY makes use of the clustering key column, the query optimizer will prefer to use the non-clustered index.