Understanding SQL Server Statistics
The next post in this short introductory series is about statistics in SQL Server – this isn’t an all-encompassing deep dive into the topic – the aim is to outline what statistics are, where and how SQL Server uses them, present a quick overview of an example statistic and an example of statistics at work.…
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Understanding SQL Server Indexes
This post follows on from the previous two about execution plans in SQL Server, in those posts I covered what an execution plan is, what they tell us and why we might need to use them. Indexes are actually nothing at all to do with execution plans but when talking about one, you often end…
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More on Execution Plans
In my previous post on execution plans we looked at what an execution plan is, how SQL Server creates them and why we might use them, now we’ll delve a little further. Recap We very briefly compared two SQL Server execution plans on two queries against the Stack Overflow 2010 database provided under cc-by-sa 4.0…
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SQL Server Execution Plans Explained
In these articles, you will see me reference execution plans a lot – talk about them, provide screenshots etc. I assume that the reader has some level of knowledge about what an execution plan is, how to view them and how to understand them. This post is aimed at those readers who do not have…
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