The Case for Scalar-valued, User-defined Functions in T-SQL
Did you know that scalar-valued, user-defined functions can be used in DEFAULT/CHECK CONSTRAINTs and computed columns? Learn about it...
2015-05-12
7,277 reads
Dwain Camps
Ruminations on Writing Great T-SQL
Today we’re going to try to extend some advice that I once heard from SQL MVP Jeff Moden, which I...
2015-05-04 (first published: 2015-04-23)
9,230 reads
Excel in T-SQL Part 1 – HARMEAN, GEOMEAN and FREQUENCY
Today’s blog will be the first in a multi-part series on replicating Excel functions in T-SQL, starting with HARMEAN, GEOMEAN...
2015-04-29
2,299 reads
Stupid T-SQL Tricks – Part 3: A Zodiacal SQL
Today we’ll learn how you can use T-SQL to calculate your zodiac sign from your birthdate.
“Heeeeeere’s Johnny!” – Ed McMahon introducing...
2015-04-16
1,339 reads
An Even Faster Method of Calculating the Median on a Partitioned Heap
Back in 2013 I wrote an article kindly accepted for publication on the Simple Talk web site called Calculating the...
2015-04-08
873 reads
A Hazard of Using the SQL Update Statement
If you've never encountered this quirk of the SQL UPDATE statement, you should take a look and find a simple way around it.
2015-04-06 (first published: 2013-09-09)
27,786 reads
An Easter SQL
Since Easter is nearly upon us, I got to thinking once again about how challenging it is to calculate the...
2015-03-31
3,703 reads
Identifying Start Dates not Aligned with End Dates on a Prior Row
When effective end dates don't align properly with effective start dates for subsequent rows, what are you to do?
2015-03-24
10,600 reads
Lessons Learned from a Poor-performing VIEW
It is a “common knowledge” among SQL practitioners that VIEWs don’t perform well. Recently during an application’s development I put...
2015-03-20 (first published: 2015-03-12)
8,921 reads
Stupid T-SQL Tricks – Part 2: Retrieving Columns Set to the Current DEFAULT CONSTRAINT Value
“Heeeeeere’s Johnny!” – Ed McMahon introducing Johnny Carson for the Tonight Show
If you’re old enough to remember the Tonight Show hosted...
2015-03-19
757 reads
Blogs
PlanTrace Now Supports PostgreSQL
PlanTrace Now Supports PostgreSQL The same plan analysis you know from...
A New Word: the Kinder Surprise
By Steve Jones
the kinder surprise – . the point in your early adolescence when you realize...
Crash-Consistent Snapshot Cloning - Hyper-V Edition
If you’ve been following my T-SQL Snapshot Backup series, most of what I’ve covered...
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SSRS Is Dead. Here Are Your Real Options
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The Distance Metric
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Question of the Day
The Distance Metric
In the new VECTOR_DISTANCE() function in SQL Server 2025, the first parameter is the distance_metric. What is this?
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