My Toolbox - Greenshot
Foreword
A picture is worth a thousand words. I use screenshots daily, whether it’s to share results, how-to tutorials, point out mistakes or create memes.
None of the tools I’ve tried...
2022-08-11
54 reads
StraightforwardSQL
Scary Scalar Functions - Part Three: The Cure
Scary Scalar Functions series overview
Part One: Parallelism
Part Two: Performance
Part Three: The Cure
Foreword
In the first two parts, we have seen why the Scalar functions (UDFs) are a problem for the...
2022-07-29 (first published: 2022-07-24)
573 reads
What's in a name? (T-SQL Tuesday #152)
Foreword
This month’s invitation is from Deborah Melkin (b|t), about venting anything you want. So let’s start this rant.
There are only two hard things in Computer Science: cache invalidation and...
2022-07-29 (first published: 2022-07-12)
287 reads
Scary Scalar Functions - Part Two: Performance
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)
569 reads
What is causing my constraint to be untrusted?
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)
373 reads
Scary Scalar Functions - Part One: Parallelism
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
43 reads
Coding Standards (T-SQL Tuesday #151)
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
17 reads
New Extended Events in SQL Server 2022
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
42 reads
Efficient Cheating at Lego Video Games
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
20 reads
Cross DB Access With Module Signing
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
23 reads
Blogs
My Social Media Rules
By Brian Kelley
I developed these rules a while back, before COVID. I had a period of...
Why Use TRY_PARSE(): #SQLNewBlogger
By Steve Jones
Someone asked why I would use TRY_PARSE after I posted a question at SQL...
A Guatemalan's Guide to Drinking Coffee Properly
My mugI grew up surrounded by coffee farms in Guatemala and somehow spent most...
Forums
Partitioning a table with TEXTIMAGE_ON option
I have a table that ends in ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]. I'm about to...
OUTER APPLY Fundamentals: Part 2
Comments posted to this topic are about the item OUTER APPLY Fundamentals: Part 2
Building Great Software
Comments posted to this topic are about the item Building Great Software
Question of the Day
The Range of Customers
I have this data in the OrderHeader table in a SQL Server 2025 database (ordered by CustomerID ASC):
orderid orderdate customerid complete 3 2025-05-10 00:00:00.0002 1 21 2024-01-10 00:00:00.0003 1 15 2023-10-28 00:00:00.0004 1 13 2025-03-08 00:00:00.0006 1 11 2024-04-02 00:00:00.0007 1If I run this query, how many rows are returned?
SELECT * from dbo.OrderHeader where customerid between 3 and '6'See possible answers