PostgreSQL error in Fabric Pipelines – No pg_hba.conf Entry for Host
I came across a bit of a weird error when I was trying to connect to a PostGreSQL database (hosted as an Azure DB for PostGreSQL), where “xx.xx.xx.xxx” is...
2024-06-07
246 reads
Blog Posts
T-SQL Tuesday #174 – My Favorite Interview Question
This month is a great topic to me. I think growing and improving your career is a skill that most of us could improve, especially in our younger years....
2024-06-07 (first published: 2024-05-14)
638 reads
T-SQL Tuesday #174: Job Interview Questions
Once upon a time, I used to think of difficult technical questions to ask candidates for a DBA position. However, over time I came to understand that in most...
2024-06-07 (first published: 2024-05-14)
420 reads
Are ABORT_AFTER_WAIT's victims logged?
In SQL Server, using the KILL command to terminate a session results in an entry being logged in the error log.
This raises the question: Does the ALTER INDEX REBUILD...
2024-06-05 (first published: 2024-05-18)
215 reads
Part 2: The Modern Azure Data Warehouse – ADF and ADLS
In today’s data-driven world, having the right tools to manage and process large datasets is crucial. That’s where Azure Data Lake Storage (ADLS) and Azure Data Factory (ADF) come...
2024-06-05 (first published: 2024-05-17)
381 reads
Free Advanced SQL Course for June: Don’t Miss Out!
Summer is here, and it's the perfect opportunity to enhance your SQL expertise with LearnSQL's special offer. For the entire month of June 2024, they are giving away their...
2024-06-04
63 reads
Large System Databases on SQL Server
This one is an oldie in my blog drafts, but a goodie! So, I will finally post it after nearly three years of sitting around. Thank you, past self,...
2024-06-04
83 reads
Automating Container Image Builds with Docker Build Cloud and Github Actions
In a previous post we went through how to use Docker Build Cloud to remotely build a Docker container image from a Github repository. In that example, we kicked...
2024-06-03 (first published: 2024-05-17)
235 reads
Power BI: Refreshable Excel Files in PBI Service
Ever since Excel made its debut in the 1980’s, it has been used as a quick way for end users to input and manipulate data on their own without...
2024-06-03 (first published: 2024-05-14)
389 reads
Sharpen Your SQL Skills: June’s Challenge Awaits!
This June, LearnSQL is throwing down the gauntlet with a fresh SQL Practice challenge. Dive into a real-world gym database and help Christine, the gym's manager, wrangle her data....
2024-06-01
73 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