There is a war about primary keys in the database world. There are two camps. The first camp believes that primary keys should only ever be created on meaningful...
2020-07-06 (first published: 2020-06-22)
683 reads
Taking it back to SQL 101 today because I recently saw something that floored me. I’m a big fan of temp tables. I use ’em all over the place...
2020-07-06 (first published: 2020-06-23)
2,548 reads
I’ve 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...
2020-07-03
11 reads
As you know, I spoke to 12 Chapter Leaders and 4 Regional Mentors yesterday. All are very upset with PASS right now and feel slighted, which as a volunteer...
2020-07-03 (first published: 2020-06-19)
264 reads
As most people reading this would know…the PASS organization is in a state of crisis now following the decision to go virtual. We are in a place where we...
2020-07-03 (first published: 2020-06-20)
192 reads
It’s the eve of the Fourth of July, when the Declaration of Independence is celebrated in the US. I’ve always like this holiday, but lately I find myself less...
2020-07-03
18 reads
No, not that kind of volume! Over the past couple of blog posts, I have been talking about the versatility of deploying SQL Server with Docker. This combination is...
2020-07-03
10 reads
Introduction Jennifer Stirrup is a data strategist and technologist, Microsoft Data Platform Most Valuable Professional (MVP), Microsoft Regional Director, Microsoft Certified Trainer, founder of Data Relish Ltd, diversity and...
2020-07-02
79 reads
Diagnostic Queries
Glenn Berry has long been known for producing the definitive diagnostic query set for various SQL Server versions. Between his amazing work and my favorite Brent Ozar First...
2020-07-02 (first published: 2020-06-24)
573 reads
I’ve 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...
2020-07-02
8 reads
By Steve Jones
I type fairly well. Well, I type fast, but I do wear out a...
By way of background, a while back I did video called “My New Favourite...
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
WA:08218154393 Jl. Jenderal Ahmad Yani No.1, Benua Melayu Darat, Kec. Pontianak Sel., Kota Pontianak,...
WA:08218154393 Jl. Jenderal Sudirman No.139, Klandasan Ilir, Kec. Balikpapan Kota, Kota Balikpapan, Kalimantan Timur...
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