Kalen Delaney

Kalen Delaney has been working with SQL Server for over 30 years, and is one of the world's most respected authorities on SQL Server and a much sought after trainer and speaker. Her book on "SQL Server Internals" is consistently cited as a must-read for aspiring SQL Server professionals.

In-Memory OLTP eBook Download

SQL Server Internals: In-Memory OLTP

In this book, Kalen Delaney explains how the 2016 In-Memory OLTP engine works, how it stores and manipulates data, and how, even with all data stored in memory and no locking or latching, it can still guarantee the ACID properties of all transactions.

(1)

You rated this post out of 5. Change rating

2023-04-28 (first published: )

1,023 reads

SQLServerCentral Article

SQL Server Concurrency: Locking, Blocking and Row Versioning

Your application can have impeachable indexes and queries, but they won't help you if you can't get to your data because another application has it locked. That's why every DBA and developer must understand SQL Server concurrency and how to troubleshoot excessive blocking or deadlocking. Kalen Delaney's book is your guide.

(2)

You rated this post out of 5. Change rating

2013-08-26

5,191 reads

SQL Server Concurrency eBook cover

SQL Server Concurrency: Locking, Blocking and Row Versioning

Your application can have impeachable indexes and queries, but they won't help you if you can't get to your data because another application has it locked. That's why every DBA and developer must understand SQL Server concurrency and how to troubleshoot excessive blocking or deadlocking. Kalen Delaney's book is your guide.

You rated this post out of 5. Change rating

2012-10-02

3,673 reads

Blogs

Why your data still can’t answer a simple question 

By

Every organization I talk to has the same problem dressed up in different clothes....

T-SQL Tuesday #197 Invitation – An impactful session or two from a conference

By

I am delighted to host this month’s T-SQL Tuesday invitation. If you are new...

Did You Really Name That Default?

By

Ten years (and a couple jobs) ago, I wrote about naming default constraints to...

Read the latest Blogs

Forums

The day-to-day pressures of a DBA team, and how we can work smarter with automation and AI

By Terry Jago

Comments posted to this topic are about the item The day-to-day pressures of a...

The Problem Isn't Always Your Query or Schema... Sometimes It's Hidden Assumptions

By dbruton95

Comments posted to this topic are about the item The Problem Isn't Always Your...

Identity Defaults

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Identity Defaults

Visit the forum

Question of the Day

Identity Defaults

What happens when I run this code?

CREATE TABLE dbo.IdentityTest
(
     id int IDENTITY(10) PRIMARY KEY,
     somevalue VARCHAR(20)
)
GO

See possible answers