Data lake architecture
I have had a lot of conversations with customers to help them understand how to design a data lake. I touched on this in my blog Data lake details,...
2022-09-30
48 reads
Blog Posts
DELETE TOP x rows with an ORDER BY
This was an interesting question that I was asked yesterday and something that I’d never really thought of before. Can you delete the top x number of rows based...
2022-09-30 (first published: 2022-09-15)
962 reads
The Redgate 100
The Redgate 100 is a list of 100 people that are influential in the database world in a number of categories.I made the list in a few places, which...
2022-09-30 (first published: 2022-09-09)
173 reads
Daily Coping 29 Sep 2022
Today’s coping tip is to avoid saying “I should” and make time to do nothing, or do something fun. I’m writing this ahead of time, and I am doing...
2022-09-29
12 reads
Why You Need Presentation Skills
And no, the answer is not because you want to be a Microsoft MVP. Multiple surveys have been published over the decades that list “fear of public speaking” as...
2022-09-29
23 reads
Daily Coping 28 Sep 2022
Today’s coping tip is let go of other people’s expectations of you. I think in general I’m not too concerned about what other people think of me, or expect...
2022-09-28
13 reads
Power BI Desktop overwrites Authentication Settings in Similar Connections
Yesterday I was facing an annoying issue. I have two Power BI datasets. Both connect to the same Azure SQL database, but with different SQL users (they have both...
2022-09-28 (first published: 2022-09-13)
219 reads
What’s next 4th time
It’s now been about two and a half months since I was given notice and decided to blog about my ... Continue reading
2022-09-28 (first published: 2022-09-08)
215 reads
Daily Coping 27 Sep 2022
Today’s coping tip is take your time. Make space to just breathe and be still. An easy one today. I’m relaxing in Venice with my wife, and likely no...
2022-09-27
14 reads
My Toolbox - Everything
Foreword
Not everything in the general sense, but a tool called Everything by voidtools (Download link). Usually, I have to make this distinction when googling.
No matter how great is my...
2022-09-27
43 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