David Durant


Stairway to SQL Server Indexes

Deeper into Nonclustered Indexes: Stairway to SQL Server Indexes Level 2

By this stage, you should be familiar with the basics of SQL Server indexes. We've discussed what an Index actually is, as well as some of the most common types you're likely to encounter. Now that we've seen some simple examples of how Indexes can be useful, we're going to delve deeper into nonclustered indexes, as we'll see how they can improve the performance of more complex queries.

5 (3)

You rated this post out of 5. Change rating

2022-11-16 (first published: )

37,401 reads

Stairway to SQL Server Indexes

An Introduction to SQL Server Indexes: Stairway to SQL Server Indexes Level 1

Indexes are the database objects that enable SQL Server to satisfy each data access request from a client application with the minimum amount of effort, resulting in the maximum performance of individual requests while also reducing the impact of one request upon another. Prerequisites: Familiarity with the following relational database concepts: Table, row, primary key, foreign key

5 (1)

You rated this post out of 5. Change rating

2019-03-29 (first published: )

66,283 reads

Stairway to SQL Server Indexes

Pages and Extents: Stairway to SQL Server Indexes Level 4

We've now seen how indexed and non-indexed tables perform in queries, and established "logical reads" as the metric for query performance. Now it is time to explain why logical reads are an excellent metric and also explain what is actually being read.

5 (2)

You rated this post out of 5. Change rating

2019-03-29 (first published: )

18,769 reads

Blogs

Dynamic Warehouse & Lakehouse Connections in Microsoft Fabric Data Pipelines

By

When you develop data pipelines in Microsoft Fabric (the Azure Data Factory equivalent in...

New Pluralsight Course - Certified Kubernetes Administrator - Performing Cluster Version Upgrades

By

We’re working through the major refresh of my Certified Kubernetes Administrator series at Pluralsight! The...

What I actually do at Microsoft

By

I started working at Microsoft in January 2022. I enjoy it. I even wrote...

Read the latest Blogs

Forums

Strange behavior passing a variable in XML.value

By PatLap

Hi,  anyone would know why as soon as I add a WHERE statement (even...

What happened to my SSMS shortcuts in 20.1?

By Eric Mamet

I installed SSMS 20.1 and all my trusted keyboard shortcuts don't work anymore... <Ctrl>E...

logshipping is out of synch need to debug

By anoop.mig29

Hi We have logshipping which get out of synch in night due to purging...

Visit the forum

Question of the Day

Operator Precedence Order

What is the correct order of operator precedence from highest (evaluated first) to lowest?

See possible answers