Daily Coping 11 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...
2022-02-11
42 reads
Blog Posts
Data Pages – the Foundation of SQL Server
Last week we laid out the foundation for how SQL Server executes queries. I have also already talked here a little bit about pages that are buffers of 8kb....
2022-02-11 (first published: 2022-01-31)
806 reads
Speaking at SQL Bits 2022
A look at the sessions I'll be presenting at SQL Bits 2022 in London this year. Excited to return to a great conference and hope to see you...
2022-02-11
48 reads
SQL Homework – February 2022 – “Soft” skills.
Well, it’s a new year and a new start, even if I am a bit behind the start of the ... Continue reading
2022-02-11 (first published: 2022-02-02)
377 reads
Azure DB for MySQL – server parameters
If you have used MySQL before you will know about the system server variables, you know such commands as SHOW VARIABLES; You can access most of them via the...
2022-02-10
56 reads
Daily Coping 10 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...
2022-02-10
38 reads
You can’t use GO in dynamic SQL.
This is one of those things that when I look back on it seems really obvious. Note: If at the ... Continue reading
2022-02-10
17 reads
Batch, Streaming, and Relational Data
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...
2022-02-09 (first published: 2022-02-03)
393 reads
BlitzBlockingChain, Getting Blocking Chains from sp_BlitzWho
I’m going to assume that most people will have at least heard of Brent Ozar’s brilliant First Responder Kit. If you haven’t then you’ve been missing out on some...
2022-02-09
116 reads
Daily Coping 9 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...
2022-02-09
13 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