Upgrade Strategies – T-SQL Tuesday #147
This month’s T-SQL Tuesday is about how we look at SQL Server upgrades, hosted by Steve Jones. My experience of SQL upgrades is that they tend to be largely...
2022-02-08
20 reads
Blog Posts
Azure DB for MySQL – Storage v1 vs v2
When it comes to MySQL and storage you will normally have to decide on 3 options: basic, general purpose v1 or v2. Basic does support up to 1TB and...
2022-02-07
20 reads
Daily Coping 7 Feb 2022
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...
2022-02-07
9 reads
Identify When your SQL Database Was Last Used
Database servers are used for storing vast amounts of data. It is essential to know when any user last used the database. This blog will cov
2022-02-07 (first published: 2022-01-24)
1,592 reads
Passed DP-900–A Review
This is part of a series on my preparation for the DP-900 exam. This is the Microsoft Azure Data Fundamentals, part of a number of certification paths. You can...
2022-02-07
106 reads
Which Columns Are Looked Up?
A common issue in performance is the lookup, key or RID, but the question frequently asked is, which columns are looked up? You need to know in order to...
2022-02-07 (first published: 2022-01-24)
439 reads
Daily Coping 4 Feb 2022
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...
2022-02-04
19 reads
Goal Progress for Jan 2022
I set goals at the beginning of the year, and I’m tracking my progress in these updates during 2022. My first update. I spent most of January unwinding slightly...
2022-02-04
12 reads
How SQL Server executes a Query
Beginning with today, I want to give you over the next few months a blog post series about the basics of performance tuning in SQL Server. Before we go...
2022-02-04 (first published: 2022-01-25)
1,622 reads
I'm Speaking at SQLBits 2022!
I’m proud to announce that I will be speaking at SQLBits! I had the absolute pleasure of speaking at SQLBits in the past, both in person and virtual, and...
2022-02-04
21 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...
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...
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