Let’s Talk About The Cloud
I’m launching a new initiative called the Community Circle Cloud Conversation Club (c5 for short). It’s going to a panel discussion lead by experts on cloud technologies. I’ll be...
2020-05-29
16 reads
The Scary DBA
Database Fundamentals #25: Referential Integrity
If you have been reading through all my fundamentals posts and following along, you have built a small sample database, loaded it with data, and learned how to retrieve...
2020-06-10 (first published: 2020-05-26)
310 reads
Can We Get Row Counts After Execution?
The general idea for this question came from dba.stackexchange.com: could we, and if we can, how, get row counts after execution. I was intrigued with the idea, so I...
2020-06-01 (first published: 2020-05-18)
599 reads
Find Indexes Used In Query Store
One of the most frequent questions you’ll hear online is how to determine if a particular index is in use. There is no perfect answer to this question. You...
2020-05-25 (first published: 2020-05-11)
441 reads
Database Fundamentals #24: More Filtering Data
In this Database Fundamentals post we continue discussing the functionality of the WHERE clause. We started with the basics of the logic using things like AND, OR and LIKE...
2020-05-04
117 reads
How Does The CHOOSE Command Affect Performance?
Questions absolutely drive my blog content and I really liked this one: how does the T-SQL CHOOSE command affect performance. On the face of it, I honestly don’t think...
2020-05-11 (first published: 2020-04-27)
643 reads
The Very Best of Extended Events
Over the next couple of months, I’ll be putting on a number of different sessions teaching about the tools supplied by Microsoft, for free, that can help you when...
2020-04-20
246 reads
Redgate Community Circle
I am very excited to announce that I will be taking my paid precon content “Tools for SQL Server Query Performance Tuning” and presenting it for free. This is...
2020-04-23 (first published: 2020-04-16)
176 reads
Develop Resiliency
We are all going through some tough times. It’s tougher for some more than others. Now is the time when you have to work on being resilient, and it...
2020-04-13
18 reads
What Prevents You From Securing Your Servers?
Reading about how hackers are using SQL Server instances that are exposed on the internet AND have weak passwords to work into systems, I’m sitting here wondering why. I...
2020-04-06
75 reads
Blogs
Methodology for dealing with bad data in production
By Brian Kelley
Pinal Dave wrote up his methodology for what to do when you discover bad...
How to Provision an Azure SQL Database
Aside from spinning up a SQL Server instance container, the free Azure SQL Database...
Claude finds two cryptographic weaknesses (but the sky isn’t falling)
By Brian Kelley
If you haven't seen the announcement, Anthropic was able to utilize Claude (Mythos Preview)...
Forums
Why SQL Server Database Attach fails and how to repair it
Comments posted to this topic are about the item Why SQL Server Database Attach...
Fixing P1 Queries
Comments posted to this topic are about the item Fixing P1 Queries
BIT_COUNT() IV
Comments posted to this topic are about the item BIT_COUNT() IV
Question of the Day
BIT_COUNT() IV
In SQL Server 2025, I run this code:
select bit_count('A')
What is returned? See possible answers