Extended Events: Avoid the XML
One story I hear over and over goes like this: I tried setting up Extended Events, but then I saw the output was XML so I stopped. Look, I...
2021-04-08 (first published: 2021-03-29)
372 reads
The Scary DBA
Query Store as an Upgrade Tool
There are a lot of uses for Query Store, but one of the most interesting is as an upgrade tool. We all know that upgrades in SQL Server can...
2021-03-29 (first published: 2021-03-22)
318 reads
Apologies
Hello all! I wanted to apologize to you. I haven’t been keeping up with the blog well at all over the last couple of months. I have simply been...
2021-03-15
30 reads
Learning A Little Oracle
As part of my job, I’ve been tasked with doing some of my work in Oracle, so I’m learning Oracle. Allow me to share a little of my pain...
2021-02-19 (first published: 2021-02-15)
336 reads
SELECT * Hurts Performance, Badly
Quite a few years ago, I wrote a post about SELECT * and performance. That post had a bit of a click-bait title (freely admitted). I wrote the post...
2021-02-01 (first published: 2021-01-25)
698 reads
Getting Started Reading Execution Plans: Highest Cost Operator
Reading execution plans in SQL Server is just hard. There’s a lot to learn and understand. I previously outlined the basics I use to get started when I’m looking...
2020-12-22 (first published: 2020-12-14)
665 reads
Why Aren’t You Automating Database Deployments?
Building out processes and mechanisms for automated code deployments and testing can be quite a lot of work and isn’t easy. Now, try the same thing with data, and...
2020-12-03 (first published: 2020-11-23)
526 reads
The Learning Curve for DevOps
If you’re attempting to implement automation in and around your deployments, you’re going to find there is quite a steep learning curve for DevOps and DevOps-style implementations. Since adopting...
2020-11-25 (first published: 2020-11-16)
274 reads
Database Fundamentals #29: Create Foreign Keys With Table Designer
The purpose of a foreign key is to ensure data integrity by making sure that data added to a child table actually exists in the parent table and preventing...
2020-11-09 (first published: 2020-11-02)
266 reads
Most Costly Statement in a Stored Procedure
A lot of stored procedures have multiple statements and determining the most costly statement in a given proc is a very common task. After all, you want to focus...
2020-10-19 (first published: 2020-10-12)
895 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
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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
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