Scary Scalar Functions series overview
Part One: Parallelism
Part Two: Performance
Foreword
In the second part of this series, we’ll look at how Scalar functions (or UDFs) affect performance.
If you want to follow...
2022-07-18 (first published: 2022-07-02)
550 reads
The problem
In this scenario, you have discovered that one of your Check constraints or Foreign keys is not trusted.
Maybe you’ve detected it with a sp_Blitz, dbachecks or out of...
2022-07-06 (first published: 2022-06-24)
349 reads
Foreword
I’m still surprised many people don’t realise how lousy Scalar functions (aka User Defined Functions aka UDFs) are. So because it’s my current focus in work and this Stack...
2022-06-21
22 reads
Foreword
This month’s invitation is from Mala Mahadevan, and it’s about coding standards. Fortunately, I may forget several basic ones because my team probably eradicated them long ago.
I’ll go with...
2022-06-14
3 reads
SQL Server 2022 CTP is here
It has been announced today (2022-05-24) during the MS Build event. The blog post includes a download link. Unfortunately, the Docker container is...
2022-05-24
13 reads
Foreword
I’ve started to play Lego Video games with my daughter, and since it’s one of her first games, it can be a little frustrating.
Even though there are no high...
2022-05-21
4 reads
Foreword
I’ve recently had to revisit this topic and spent a lot of time recalling the details. So I’m writing this blog post mainly as a reminder for myself.
The most...
2022-05-12
10 reads
⚠️ It’s hard to convey sarcasm over the text. I’m putting this disclaimer at the top so I don’t come off egoistic. This post is meant as hyperbole, and...
2022-04-13
12 reads
The problem
As a fan of Dynamic Management Objects (DMOs), Query Store and Extended Events, I often work with the Query Hash and Query Plan Hash (I’ll refer to them...
2022-04-11
23 reads
Foreword
I was always wondering what the KEEP PLAN hint does. The documentation isn’t very specific (emphasis mine):
Forces the Query Optimizer to relax the estimated recompile threshold for a query.
In...
2022-04-07
57 reads
This month, I prompted bloggers to discuss whether good enough is perfect. Thank you to all...
By Steve Jones
Recently a customer asked if SQL Compare and SQL Data Compare can be used...
i see this in the definition of a linked server on our wh sql...
Is this even possible ? Tried with grant but to no avail. [sys].[database_role_members] and...
Comments posted to this topic are about the item Stairway to Snowflake Level 5...
What does this code return in SSMS 20 from SQL Server 2019?
select '|' + CHAR(0)+'abc' + '|';See possible answers