Tomaž Kaštrun


SQLServerCentral Article

Manage Your Business Rules in T-SQL Query

Motivation At some point in the carrer, we have come across the problem of hard-coded values in SELECT or WHERE clauses.  And we all agree that these hardcoded values must be parametrised. This bad habit usually backfires when we need to troubleshoot a query. These hardcoded values are usually a business role baked in the […]

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2022-10-18 (first published: )

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SQLServerCentral Article

Playing popular game of Wordle using T-SQL

Popular and addictive game of Wordle is now written in Transact SQL script. With this script, you can now  play this game on Microsoft SQL Server, using your favourite editor - SSMS, ADS, VS Code, and enjoy playing the game during free time, or whilst waiting for the other SQL query to complete.

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2022-01-19

755 reads

SQLServerCentral Article

Playing popular game of Wordle using T-SQL

Popular and addictive game of Wordle is now written in Transact SQL script. With this script, you can now  play this game on Microsoft SQL Server, using your favourite editor - SSMS, ADS, VS Code, and enjoy playing the game during free time, or whilst waiting for the other SQL query to complete.

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2022-01-19

4,604 reads

SQLServerCentral Article

Creating Markdown Formatted Text for Results from T-SQL

Markdown documents are becoming increasingly more popular and relevant with the emergence of notebooks. Markdown is a markup language for creating formatted text. It is widely used in tools for collaboration, tools for creating documentation and notebooks. Formatting is easy to understand, readable, simple to adopt, and agnostic. I can use a markdown document on […]

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2021-11-29

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Finding Trailing Spaces

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Question of the Day

Finding Trailing Spaces

I have some data in a SQL Server 2025 database. It looks like this for the dbo.Customer table:

CustomerID CustomerName PreferredName
1          Steve        Steve               
2          Andy         Andy               
3          Brian        Brian               
4          Allan        Allan               
5          Devin        Devin               
6          Steve        Steve               
7          Sally        Sally
I want to detect which names have a single trailing space. The CustomerName is a varchar() and the PreferredName is a CHAR(). Does this query detect the problem rows?
SELECT 
       CustomerID,
       CustomerName,
       PreferredName
FROM Customer
WHERE CustomerName <> RTRIM(CustomerName)
OR PreferredName <> RTRIM(PreferredName);

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