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)
367 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)
312 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
27 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)
333 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)
692 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)
654 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)
520 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)
269 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)
258 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)
888 reads
Blogs
From Data Custodian to Innovation Catalyst: The Evolving Role of the CDO
By Chris Yates
There was a time when the Chief Data Officer lived in the shadows of...
Down the Rabbit Hole: Dealing with Ad-Hoc Data Requests
By Rayis Imayev
"But I don’t want to go among mad people," Alice remarked."Oh, you can’t help...
Adding a Local Model to Ollama through the GUI
By Steve Jones
I saw some good reviews of the small gemma3 model in a few places...
Forums
Create an HTML Report on the Status of SQL Server Agent Jobs
Comments posted to this topic are about the item Create an HTML Report on...
We Should Demand Better
Comments posted to this topic are about the item We Should Demand Better
Estimated Rows
Comments posted to this topic are about the item Estimated Rows
Question of the Day
Estimated Rows
I have two calls to the GENERATE_SERIES TVF in this code:
SELECT TOP 10 gs.value FROM GENERATE_SERIES(1, 10) AS gs ORDER BY NEWID () OPTION (RECOMPILE); go DECLARE @a int = 10; SELECT TOP (@a) gs.value FROM GENERATE_SERIES(1, @a) AS gs ORDER BY NEWID () OPTION (RECOMPILE);In the actual query plans, what is the estimated number of rows for each batch? See possible answers