I was doing a bit of data analysis, and the resulting numbers didn’t quite add up.
I double-checked my queries. Had I goofed in my sql? Nope. Next, I looked into if some of the data was in an inconsistent state.
What I found was worse than what I’d imagined. As a data person, it made me feel sad and icky.
I see HEAP tables are found even when I know those tables have a clustered index, and I see a lot of forwarded records. This happens to 5 tables in my database. I can see the clustered and in some ones the non-clustered indexes… why are some scripts reporting them as heaps?
I get a lot of requests about which books are helpful to learn performance tuning and database design. I totally get that – I still like learning with books. It doesn’t mean training videos or blogs are any less cool. They can all work together.
Copyright (c) 2025, Catalyze SQL, LLC; all rights reserved. Opinions expressed on this site are solely those of Kendra Little of Catalyze SQL, LLC. Content policy: Short excerpts of blog posts (3 sentences) may be republished, but longer excerpts and artwork cannot be shared without explicit permission.