Extended Events: Live Data Explorer, Grouping
Of all the things that Extended Events does, I’ve found the ability to quickly and easily gather a little bit of data and then use the Data Explorer window...
2020-03-23
97 reads
Blog Posts
SQLpassion in the time of Covid-19
(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance...
2020-03-23 (first published: 2020-03-16)
331 reads
SSIS Package Execution Failure – When google fails you :(
We have all done it, get some sort of cryptic error and the first place we go to search is Google hoping the sea of message boards and blog...
2020-03-23 (first published: 2020-03-14)
685 reads
T-SQL Tuesday Live–A Neat Solution
Travel is limited, or banned, in many cases these days. Events are cancelled or postponed, and there is a limit to how much contact we should have with each...
2020-03-23
20 reads
Cross-Post: Learning From Technology’s Past
Cross-posted from the ISACA Now Blog: “This is the song that doesn’t end. Yes it goes on and on, my friends.” – Lewis, S., “The Song That Never Ends,” Lamb-chop’s...
2020-03-20 (first published: 2020-03-11)
208 reads
Outlining My Session: Index Tuning in an Agile World
I’m giving a session on index tuning at the upcoming Redgate Streamed free online conference. The conference will be held April 1-3 2020, register here and join us! I...
2020-03-20
35 reads
Window Shopping the Query Store with XEvents
This article has just shared multiple tools to help you become more acquainted with the Query Store! This acquaintance is coming via an extremely powerful tool called Extended Events....
2020-03-20 (first published: 2020-03-12)
190 reads
Announcing Redgate Streamed, April 1-3 2020
We’re thrilled to announce Redgate Streamed: a 3 day online virtual community conference, to be held April 1-3, 2020. Register at Redgate.com/RedgateStreamed In this 9 minute livestream, I give...
2020-03-19
16 reads
Missing #SQLFamily? Check This Out.
I am an introvert. Lots of people don’t believe it, but it’s true. However, I really do love getting to see my #SQLFamily all over the world in my...
2020-03-19
21 reads
Power BI Security
A common topic I have been discussing recently with customers is the security around Power BI. Basically, how to prevent users seeing data they shouldn’t. So I’ll discuss the...
2020-03-19 (first published: 2020-03-10)
626 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