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: )

37,505 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: )

66,539 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: )

18,893 reads

Blogs

Spark Connect Dotnet Variant Data Type

By

All Spark Connect Posts I recently published the latest version of the Spark Connect Dotnet...

A New Word: Opia

By

opia – n. the ambiguous intensity of eye contact The entry for this says...

Friday Flyway Tips: Searching a Migration

By

This was actually a cool tip I saw internally from one of the product...

Read the latest Blogs

Forums

restore a cdc db from 2016

By Sailor

I'm backing up a SQL 2016 db and copying it to SQL Server 2022. ...

Serverless Gets Faster

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Serverless Gets Faster

sqlclient data provider .net provider connection

By jaango123

I have a task to check the connection managers as part of ssis integration...

Visit the forum

Question of the Day

Statistics Histograms

I have a statistics objects with 2 key columns from my tables. How many histograms and their type are stored?

See possible answers