SQL Server 2017 (compatibility 140) brought us many Intelligent Query Processing (IQP), formally known as Adaptive Query Processing, features that improve performance on workloads straight out of the box...
2020-09-02
29 reads
I started to add a daily coping tip to the SQLServerCentral newsletter and to the Community Circle, which is helping me deal with the issues in the world. I’m...
2020-09-02
21 reads
The Call for Speakers for the 2020 Fall edition of GroupBy is open, but it closes in just 3 days! We’re currently using Sessionize to help us organize this...
2020-09-02
49 reads
Recursively Querying Related Rows Recursive queries are fun to plan and write. They can be frustrating too depending on the complexity of the problem you are trying to solve....
2020-09-02 (first published: 2020-08-25)
596 reads
Two years ago I wrote a post that got a lot of traction in the comments at the time. Last month there was renewed interest because one of the...
2020-09-02
31 reads
Did you know it is possible for SQL Server Agent to alert you of problems if something goes haywire with your Agent? Have you ever had an issue with...
2020-09-02 (first published: 2020-08-25)
402 reads
Following on from my posts about using Secret Management Good bye Import-CliXml and running programmes as a different user, I have another use case. After creating Azure SQL Databases...
2020-09-01 (first published: 2020-08-21)
559 reads
I started to add a daily coping tip to the SQLServerCentral newsletter and to the Community Circle, which is helping me deal with the issues in the world. I’m...
2020-09-01
24 reads
I recently published my color contrast report in the Power BI Data Stories Gallery. It allows you to enter two hex color values and then see the color contrast...
2020-09-01 (first published: 2020-08-20)
416 reads
Triggers. Still blech. In June I asked you to play with DML triggers. Well, one more time. First of all ... Continue reading
2020-09-01
111 reads
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
I’m sure you’ve all heard the tale of Goldilocks and the Three Bears, but...
By Steve Jones
One of the things I’ve been requesting for a number of years is cost...
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
Comments posted to this topic are about the item How We Handled a Vendor...
Comments posted to this topic are about the item Cognitive Coverage
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