T-SQL Trigonometric Functions in SQL Server
Introduction SQL Server includes several built-in mathematical functions that allow developers to perform complex calculations directly within queries. Among these are trigonometric functions such as SIN(), COS(), and TAN(), which are useful in scenarios involving engineering calculations, geographic data processing, simulations, and analytics. Although these functions are straightforward to use, developers occasionally encounter unexpected results […]
How Multi-Column Statistics Work
The short answer: in the real world, only the first column works. When SQL Server needs data about the second column, it builds its own stats on that column instead (assuming they don’t already exist), and uses those two statistics together – but they’re not really correlated.
Spring Connections and Learning at PASS On Tour
The spring PASS On Tour event is coming to Chicago in a few weeks.
T-SQL in SQL Server 2025: JSON_ARRAYAGG
Learn how the JSON_ARRAYAGG() function works in SQL Server 2025.
Microsoft On-Premises Data Gateway Administration
As a Microsoft Fabric Administrator, you have the responsibility to manage all the Microsoft Enterprise gateways installed and deployed across your entire data estate.
Introducing the Relational Embedding Retrieval Pattern: Storing and Querying Vector Embeddings in SQL Server
Learn about using SQL Server to support AI-enhanced search queries with the Relational Embedding Retrieval Pattern (RERP).
Cross-database ownership chaining in SQL Server: security risks, behavior, and privilege escalation
A dangerous privilege-escalation path exists in SQL Server when cross-database ownership chaining, system database defaults, and overly permissive permissions are combined.
Blogs
Five Ways Redshift Serverless Quietly Eats Your Budget
It is Friday, the queries are running, and nobody is watching the bill. That...
A Career of Memories
By Steve Jones
Annabel retired from Redgate Software this week. Across most of my career at Redgate,...
Rethinking Index Maintenance: Why avg_fragmentation_in_percent Is Outdated and What You Should Do Instead
By Tim Radney
As a SQL Server DBA with years of experience tuning production environments, I’ve seen...
Forums
Changes, Happiness, and a Few Tears
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BCP on Linux
Comments posted to this topic are about the item BCP on Linux
You Probably Don't Need a Vector Database
Comments posted to this topic are about the item You Probably Don't Need a...
Question of the Day
BCP on Linux
When running bcp on Linux, what is the field terminator?
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