It’s always parameter sniffing (part 1?)
This is a blog post about a perennial issue. Have you ever had a call in the middle of the...
2019-01-28 (first published: 2019-01-16)
3,041 reads
My alternative to sp_WhoIsActive
I use sp_WhoIsActive a lot. I’m extremely grateful for Adam Machanic writing it. It has tons of options that let...
2019-01-28
5,291 reads
Memory Grants part 6: Memory used in aggregate functions (Min/Max/etc)
So far in this series, I’ve been focusing on the Sort operator. It’s pretty easy for demos since I can...
2019-01-25
690 reads
The Execution plan comparison feature (in SSMS)
Did you know that you can compare two execution plans in SQL Server Management?
It’s really cool. I use it a...
2019-01-25
999 reads
SQL Server Monitoring: What to start measuring
So you’ve got a SQL Server that you want to monitor. What should you monitor? In my opinion, at bare...
2019-01-22 (first published: 2019-01-14)
2,676 reads
Memory Grants part 4: The Resource Semaphore
Part of query memory grants, part 4! This post will cover the wait type RESOURCE_SEMAPHORE briefly, but the focus is...
2019-01-21
1,183 reads
New page on this blog: Contact Me
This is not a technical post! Just wanted to say that I set up a public email address for this...
2019-01-19
135 reads
When the query plan hash is deceptive
When you’re querying the plan cache, you need to know the four primary objects: the query hash, query plan hash,...
2019-01-17
769 reads
Execution plans: RetrievedFromCache
I first came across the value for RetrievedFromCache when I was reading a confusing execution plan. At first, I thought...
2019-01-11
716 reads
Why is the query hash so useful?
An example of how I use the query hash
I wrote a blog on what the query hash is, right here....
2019-01-10
6,685 reads
Blogs
Take Time to Gain Perspective
By Brian Kelley
Probably the best piece of advice I ever received is to take time to...
The Fringe Festival
By Steve Jones
I was lucky enough to take a vacation a decade ago in Edinburgh with...
Demo for Parameter Sniffing and Memory Grant Feedback
Disclaimer: The following is built with Claude Code. Just need to justify my $100/mo...
Forums
Learn From History
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The SQL Server MCP Server
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The Hidden Danger of Wildcard Operators In Join Operations
Comments posted to this topic are about the item The Hidden Danger of Wildcard...
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