31Mar 2025 by Grant Fritchey 4 Comments

How Do You Pick Events in Extended Events?

SQL Server
A while back I wrote about using AI to explore why people are not using Extended Events. You can read all about it here, but a short summary of the biggest blockers would be: Familiarity (more comfort in Trace or DMVs) Lack of Knowledge (just don't know how it works) XML (I agree) Event Overload (there are just too many) For this blog post I want to focus on the last one, Event Overload. There really are a lot of events in Extended Events. I don't just think that's a good thing. I think it's a GREAT thing. However, I get it. I hit the same problem, regularly. Which events do I use to do thing that I'm trying to do? Except for blogs like this one, there's not always…
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24Mar 2025 by Grant Fritchey 2 Comments

Can You Tell Why a Plan Didn’t Go Parallel?

SQL Server
Let's face it, most of the time, you probably don't want your SQL Server execution plans to go parallel. After all, that's why, instead of adjusting the Cost Threshold for Parallelism (as you should have), you've set the Max Degree of Parallelism to 1 (I see you out there). However, some of you recognize that, in fact, some queries need to run in Parallel. Yet, sometimes, a query you think should run in parallel doesn't. Can you tell why a plan didn't go parallel? If It's Not Parallel, Why Not? The good news is, this question is really simple to answer. I'm sure you'll be shocked when I tell you that it's right there in the execution plan. The bad news is, you're going to have to open up the…
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20Mar 2025 by Grant Fritchey 3 Comments

Sic Transit Gloria Community

Professional Development
When Covid took out the PASS organization, I had someone say to me, "Well, that's the end of the data community." My response was pretty simple, "Nope. The community is the people, and they're not going anywhere." I was right. And I was wrong, but not because of PASS. Splintered I was asked recently, in a single word, to describe the data community. I chose 'Splintered.' Why? It's because of social media. We leaned pretty hard on having a limited number of channels for communication within the community. There were really only a couple of choices. Today though, we're scattered to the four winds. BlueSky has brought in some people. Others are on Mastodon. You'll still find people on X or Facebook. However, even more are on LinkedIn. Don't forget…
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17Mar 2025 by Grant Fritchey No Comments

Can You See Table Valued Parameters in Extended Events?

SQL Server, You Can't Do That In Profiler
I live for questions and this was an interesting one. Can you see Table Valued Parameters that have been passed in to Extended Events? I literally have no idea. I'm sure we'll see something, I just don't know what. Time to find out. Table Valued Parameters I don't want to get in to whether or not table valued parameters are a good or bad thing. Like anything else, I'm sure they can be used for good or for evil. However, just like knowing what value was passed to an integer, I can see why you may want to know what was passed in to a table valued parameter. To get started, let's create a table type: CREATE TYPE ErrorList AS TABLE ( ErrorTime DATETIME, UserName sysname, ErrorNumber INT, ErrorMessage NVARCHAR(4000)…
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