A Bug in ‘Move All Your SQL Database and Log Files in Bulk’
It looks like we had a bug the in the SQL script in Move All Your SQL Database and Log Files in Bulk. No worries though, it’s all been fixed...
2020-04-22
19 reads
T-SQL Tuesday #124 Query Store and Spin Locks #tsql2sday
This month’s T-SQL Tuesday invitation comes from Tracy Boggiano and she’s asking us to write about our experiences with Query Store. I thought about what I should write, I’m...
2020-03-17 (first published: 2020-03-10)
340 reads
Undercover Tools: February Updates and Change Log
Below is the February list of changes and updates to the Undercover Tools. Undercover Catalogue Update 0.4.2Two new modules were added to the Catalogue. Trace Flags – Capture trace...
2020-03-02
25 reads
SOS_SCHEDULER_YIELD – What is it really telling us?
I decided to write this off the back of a conversation I was having the other day around the SOS_SCHEDULER_YIELD wait type. The conversation went something along the lines...
2020-02-26
135 reads
SQL Undercover TV – Instant File Initialisation
Adrian has a look at the performance benefits of instant file initialisation Below is Ade’s auto growth script…
2020-02-17
37 reads
Installing and Configuring the Undercover Catalogue
Quick video showing you how to install and configure the SQL Undercover Catalogue
2020-02-04
31 reads
Inspector 2.1 now available
As always all updates can be found on our Github repo Breaking changes (Powershell collection): We only test the powershell collection against 2-3 servers so please test carefully before...
2020-02-03
37 reads
Undercover Tools: January Updates and Change Log
Below is the January list of changes and updates to the Undercover Tools. Undercover Catalogue Update 0.4.0Major upgrade, see https://sqlundercover.com/2020/01/06/undercover-catalogue-0-4-0-released/ for full details Update 0.4.1ServerConfig module added, detailing settings...
2020-02-03
24 reads
Undercover TV – Table Variable Deferred Compilation
David takes a look at a new feature of SQL 2019, table variable deferred compilation
2020-02-03
22 reads
Your SQL Server's Screaming But Is Anyone Listening? – High Severity Alert Notifications
As usual, the scripts in this post can be found HERE on our Git Hub repo If your SQL Server comes across something that it’s not happy about, it...
2020-01-30
310 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...
WITH clause gets a 26ai boost!
By way of background, a while back I did video called “My New Favourite...
Automatic Index Compaction
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
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...
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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