2025-11-23
5 reads
What do client diagnostics in Cosmos DB mean?
This topic keeps coming up with my customers so the purpose of this blog post is to keep all the useful information in one post. Think of this post...
2024-10-23 (first published: 2024-10-09)
178 reads
Cosmos DB – Monitoring performance
Cosmos DB has become my latest focus and I hope to start sharing more about ways you can use it. Cosmos DB doesn’t provide the same granularity of query...
2023-11-29 (first published: 2023-11-15)
243 reads
Presentation 5: Presenting Performance Tuning with Memory Grants
So it’s about a week after SQL Saturday Chicago 2019. The event was amazing, tons of great people and in a great venue. Here’s the details of what happened...
2019-04-15 (first published: 2019-04-01)
606 reads
Writing a presentation 4: Practice and improvement
My presentation so far is really rough. I need to improve a lot before SQL Saturday Chicago! For now, the...
2019-03-20
1,013 reads
SSMS tip: Splitting the same query window
This is a trick I use in SQL Server Management Studio at least once a week.
Today’s scripts will be screenshots...
2019-03-18 (first published: 2019-03-02)
3,193 reads
Writing a presentation 3: Entering the PowerPoint world
This is a series I’m writing as I prepare for SQL Saturday Chicago 2019. My session is called Performance tuning...
2019-03-18
315 reads
One week blogging hiatus
I’m taking a brief break from daily blogging, even though it has been a ton of fun.
No excuses
I hope...
2019-03-11
225 reads
Optimize for ad hoc VS sp_executesql?
Happy Friday! We made it. Here’s something I came across while testing optimize for ad hoc for this week’s blog...
2019-03-11 (first published: 2019-02-22)
2,132 reads
Favorite community scripts and their parameters
Here’s some of my favorite community scripts and how I like to run them. If you haven’t tried the optional...
2019-03-09
681 reads
Blogs
AI Helps Me with My Sloppiness
By Steve Jones
I type fairly well. Well, I type fast, but I do wear out a...
WITH clause gets a 26ai boost!
By way of background, a while back I did video called “My New Favourite...
Automatic Index Compaction
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
Forums
SQL Art, Part 4: Happy 4th of July — A British DBA's Guide to Celebrating a War We Don't Talk About
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
How We Handled a Vendor Retry That Loaded Twice in Snowflake
Comments posted to this topic are about the item How We Handled a Vendor...
Cognitive Coverage
Comments posted to this topic are about the item Cognitive Coverage
Question of the Day
Getting the Average
I have this data in the dbo.Commission table in a SQL Server 2022 database.
salesperson commission Brian 12 Brian 16 Andy 7 Andy 14 Andy 21 Steve 20 Steve NULLAll the data is a varchar, and I decide to run this query to get the totals for each salesperson.
SELECT SalesPerson
, AVG(TRY_PARSE(Commission AS int)) AS TotalCommission
FROM commission
GROUP BY SalesPerson
GO
What average commission is calculated for Steve? See possible answers