Daily Coping 4 Feb 2021
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...
2021-02-04
19 reads
Blog Posts
Rowcount estimates when there are no Statistics
When you don't have statistics, what does SQL use to calculate the estimated number of rows?
2021-02-04 (first published: 2021-01-26)
297 reads
Set up connection from Azure Data Factory to Databricks
Both, Azure Data Factory and Azure Databricks offer transformations at scale when it comes to ELT processing. On top of that, ADF allows you to orchestrate the whole solution...
2021-02-04
20 reads
What is a model database?
Do you ever take a look at SSMS in the System Databases section? People that are new to SQL Server might or might not know much about these essential...
2021-02-04 (first published: 2021-01-26)
600 reads
Added another 3 new PowerShell functions for reports on Power BI Report Server
I finally did it. I created a function I’ve been wanting to be able to use for *years*. Test-RsRestItemDataSource is here. I can’t tell you how many times I’ve...
2021-02-03
35 reads
Daily Coping 3 Feb 2021
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...
2021-02-03
26 reads
Getting SQL Agent Jobs and Job Steps Configuration
Recently I needed to take a look at all of the SQL Server Agent Jobs and their Jobs Steps for a customer. Specifically, I needed to review all of...
2021-02-03
17 reads
Mastering TempDB: The Basics
I regularly deliver a presentation called “Mastering TempDB”. I wrote it based on what I wish I knew about TempDB “growing up” in my career as a SQL Server...
2021-02-03
70 reads
One Chart at A Time Video Series
Jon Schwabish over at PolicyViz has created great initiative called the One Chart at a Time Video Series. It’s an effort to expand readers’ graphic literacy through short videos...
2021-02-03 (first published: 2021-01-27)
557 reads
Server Review Essentials for Accidental and Junior DBAs—Client Onboarding (Part 1)
Welcome back to my ongoing series about how we perform regular server reviews here at Dallas DBAs, and the tips and tricks I’ve picked up in my first 1.5...
2021-02-03
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