7th Anniversary
7 years ago today I posted my very first blog post and I’ll tell you it’s been a heck of ... Continue reading
2019-08-20
20 reads
Blog Posts
A Memory-Optimized Roundup – T-SQL Tuesday #117
The summary from my fourth T-SQL Tuesday hosting for #117. This time I was scrambling a bit, but since I’ve worked with a few customers in the last year...
2019-08-20
24 reads
How do you debug your spark-dotnet app in visual studio?
When you run an application using spark-dotnet, to launch the application you need to use spark-submit to start a java virtual machine which starts the spark-dotnet driver which then...
2019-08-20
7 reads
How do you debug your spark-dotnet app in visual studio?
When you run an application using spark-dotnet, to launch the application you need to use spark-submit to start a java virtual machine which starts the spark-dotnet driver which then...
2019-08-20
37 reads
July 2019 – New Microsoft security update for Spectre variant
If you remember the flurry of news from the beginning of 2018 about side channel attacks called Spectre and Meltdown, Microsoft has included in its July update a patch...
2019-08-20 (first published: 2019-08-07)
361 reads
My Preferences for SSIS Design
Lately, I have been using SSIS execution frameworks and Biml created by other people to populate data marts and data warehouses. It has taught me a few things and...
2019-08-20 (first published: 2019-08-08)
1,166 reads
5 Things You Need To Know When Reading SQL Server Execution Plans
Watch this week’s episode on YouTube. 5 Things You Need To Know When Reading SQL Server Execution Plans In the first part of this series I explained what an execution...
2019-08-19 (first published: 2019-08-06)
1,311 reads
Azure DevOps: How to Set a Custom Release Branch Folder Filter in Build Pipeline Triggers (video)
This is the first in a series of posts about simple things that I had a hard time figuring out in Azure DevOps services. It can be very useful...
2019-08-19
68 reads
Beginning T-SQL and Career Roadmap for Women (and Men)! #SQLSatBR
Download session materials and watch the recordings of my excellent sessions on Transact-SQL and IT careers! I'm looking especially at you, women in technology!
The post Beginning T-SQL and Career...
2019-08-19
30 reads
Feature Restrictions in SQL Server 2019 are Worse Than Useless: a False Sense of Security And Wasted Opportunity
A misguided attempt to improve security that not only increases the chances of SQL Injection, but also prevented useful changes from being made.… Continue reading Feature Restrictions in...
2019-08-19 (first published: 2019-08-05)
1,300 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...
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