Visual Design for Safety
Good visual design matters, and Steve notes that his Tesla needed an update because their design didn't meet the specification.
2024-02-21
138 reads
Data Visualization
The Best Graph
Today Steve discusses visualizations and how we would think about the information a client gets from them.
2023-05-24
196 reads
Better Communication of Information
Learning to better display the information contained in our data is a skill. Steve has a few thoughts today on learning to improve this for himself.
2022-06-20
135 reads
When to Use Zero
Charts and graphs need a scale to be meaningful. When to include zero in your scale is a question that is more complicated than Steve expected.
2022-04-13
134 reads
Fixing Report Visuals
Building reports and visualizations isn't as simple as we would like. Learning a bit about how to better design them is important.
2021-07-09
147 reads
Deceptive Visualizations
I'm sure there are plenty of examples, but I've seen deceptive data visualizations far too often in mass media. I don't often watch the news, but at times I've been at the gym, saw a graph on a television, and been a little surprised. The issue that bothered me is similar to what's discussed in […]
2021-06-19
135 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...
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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