Tag Archives: index
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What happens if I disable the clustered index?
1December 16, 2019 by Kenneth Fisher
You are probably already aware that you can disable an index. This can be handy when you have a large …
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My fantasy SQL feature(s)? T-SQL Tuesday #118
3September 10, 2019 by Kenneth Fisher
It’s fantasy football time again? Oh, fantasy feature? Oh, yea, that makes a lot more sense for #tsql2sday. What’s #tsql2sday? …
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SQL Homework – April 2018 – Indexes
Leave a commentApril 2, 2018 by Kenneth Fisher
This month we are going to look at a topic near and dear to both database developers and database administrators …
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Uniquifier is a rather unique word isn’t it?
8September 18, 2017 by Kenneth Fisher
tl;dr; The uniquifier is used to make a non-unique key in a clustered index unique. Uniquifier is a rather funny …
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When was my index created or at least last updated?
1November 14, 2016 by Kenneth Fisher
SQL Server stores a create date and a change date for each object in the sys.objects system view. Unfortunately while …
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Remove files from a filegroup
Leave a commentMay 2, 2016 by Kenneth Fisher
You have a database with one or more filegroups, and one or more of those filegroups has multiple files. You’ve …
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Pulling data from a non-clustered index
2March 14, 2016 by Kenneth Fisher
This is one of those things that I found very interesting but figured I’d probably never really use. Of course …
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Does a clustered index sort the rows within a page
Leave a commentDecember 15, 2014 by Kenneth Fisher
This is just something I was curious about. I ran my tests and got an answer and now I thought …
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DROP INDEX and CREATE INDEX vs ALTER INDEX REBUILD
6December 11, 2014 by Kenneth Fisher
I saw someone ask a few weeks ago if it was faster to drop and re-create an index or do …
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Using a date or int column as the clustered index.
13December 1, 2014 by Kenneth Fisher
The other day I was answering a question about clustered indexes and it lead indirectly to a twitter conversation on …
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SQL Studies 