Are There That Many GUIDs?
Steve Jones talks about a recent survey that showed more people use GUIDs as primary keys than identity values.
2015-03-24 (first published: 2010-10-12)
685 reads
Editorials
First Episodes
Today we have a guest editorial from Andy Warren where he looks back at how things have changed.
2015-03-23
125 reads
Microservices, SOA and Service Broker
If you want to implement a service-oriented architecture on Windows, Service Broker is still your best choice, argues Phil Factor.
2015-03-23
461 reads
Microsoft and R
R is an interesting language and one that might become more important to data professionals in the future. Microsoft is also making an investment here.
2015-03-19
499 reads
2015-03-18
805 reads
Computational Biologist
A job Steve Jones has never heard of is using data to improve medical treatments.
2015-03-16
100 reads
2015-03-16
183 reads
The Design Investment
How much of an investment should you make in learning design? Steve Jones talks about why we should learn how to do it right.
2015-03-11 (first published: 2010-09-29)
335 reads
Limitations of MongoDb
This article looks at two critical limitations suffered by MongoDb compared with SQL Server.
2015-03-10
467 reads
Don’t Understand? You’re About to Learn Something
Learning opportunities abound, but they can be stressful, as shown in today's guest editorial.
2015-03-09
262 reads
Blogs
Automatic Index Compaction
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
The Goldilocks problem – Materialized Views
I’m sure you’ve all heard the tale of Goldilocks and the Three Bears, but...
Monday Monitor Tips: Virtual Machine Usage and Cost
By Steve Jones
One of the things I’ve been requesting for a number of years is cost...
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