Azure Databricks Overview
I have spent many long weekends getting stuck into Azure Databricks, plenty of time to understand the core functionality from mounting storage, streaming data, knowing the delta lake and...
2020-10-06
174 reads
Blog Posts
Daily Coping 6 Oct 2020
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...
2020-10-06
20 reads
Failing SQL Agent Jobs – Part 4
Here we are, another Tuesday!! It is time for our Fourth and final installment in the Failing SQL Agent Jobs series. This week, we will cover how to store...
2020-10-06 (first published: 2020-09-29)
328 reads
Fixing the PoSh Hotkey in ADS
I installed the PowerShell (PoSh) extension in ADS recently. This is available in the extension pane, and once installed, you get the 4th icon on the right added to...
2020-10-06 (first published: 2020-09-28)
144 reads
New Presentation - The SQLFamily
A couple months ago I delivered a short (15 minute) presentation at work about the importance of having a good professional network and how I’d found mine. As I...
2020-10-06
11 reads
A Database Playlist for Your Mom
Recently someone asked me if I had a video explaining what a database was. I didn’t, but was curious. Apparently, this person wanted to learn a bit about databases...
2020-10-05
40 reads
Capture Execution Plans Only For Long Running Queries
I love questions. Most of all, I love questions I can answer. I spotted this question recently: How can I use Profiler to capture execution plans for queries over...
2020-10-05 (first published: 2020-09-28)
524 reads
Custom deployment parameters in Azure Data Factory - Forget Me Not
(2020-Sep-26) Last week one of my Azure Data Factory (ADF) deployment pipelines failed with an error that it couldn’t find some of the deployment parameters that I try to override,...
2020-10-05 (first published: 2020-09-26)
760 reads
Daily Coping 5 Oct 2020
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...
2020-10-05
19 reads
2020-10-04
31 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