Using Indexing To Solve Blocking and Deadlocking Issues
A while back, I was having a conversation about a deadlocking issue and suggested that an index could perhaps help...
2019-03-20 (first published: 2019-03-05)
3,028 reads
#TSQL2sDay – #112 – Mini cookies
This months TSQL Tuesday is hosted by Shane O’Neill (Blog | Twitter) Shane explains the Topic as:
Dipping into the Cookie Jar...
2019-03-12
286 reads
TSQL Tuesday #112 – Dipping into the Cookie Jar
This month’s TSQL Tuesday comes from Shane O’Neil and he’s asking us to ‘dip into the cookie jar’ (or raid...
2019-03-12
237 reads
Undercover TV – Sean McCown Joins Us For a Session on Beginning Powershell SMO
In this episode, Adrian looks at some of the new features of the Undercover Inspector1.3 and special guest, Sean McCown...
2019-02-26
242 reads
7 more ways to Query Always on Availability groups
Post Updated: Replaced Query 3 with transactions/sec query.
When we first published 7 ways to Query Always On Availability Groups using...
2019-02-19
381 reads
Undercover Catalogue 0.2.1, Fixes An Issue With The Recording Of Unicode And MAX Datatype Lengths
Please see https://sqlundercover.com/undercover-catalogue-0-2/ for full details on the Undercover Catalogue and how to obtain it.
We’ve spotted an issue where unicode...
2019-02-14
132 reads
ALTER TABLE Fails on Replicated Tables With Isolation Level SERIALIZABLE or READ UNCOMMITTED on SQL2012 and Earlier
It’s 4am in the morning and my phone starts ringing.
A blury eyed, me picks it up to hear the voice...
2019-02-07
337 reads
Undercover Catalogue 0.2 Released
We’re pleased to announce the release of the Undercover Catalogue 0.2 and can be downloaded from https://github.com/SQLUndercover/UndercoverToolbox/tree/master/SQLUndercoverCatalogue
The new version brings...
2019-02-04
122 reads
Availability Groups: When Your Synchronous Secondary isn’t Synchronous
During a recent DR scenario I came across a slight misinterpretation in how availability groups with replicas in synchronous commit...
2019-01-22 (first published: 2019-01-14)
2,057 reads
Inspector V1.3 hotfix
Unfortunately we discovered a small bug in 1.3, the Database ownership module default warning level was not showing a yellow...
2019-01-16
175 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