Evolution of code The thing with any bit of code that has been around for a while, is that when change comes along, the tendency is to cater for the change by adding new stuff, while nothing gets taken away. Some stuff has definitely been taken away from this Date Dimension, but some historical artefacts […]
2025-09-02 (first published: 2025-08-05)
2,961 reads
Introduction Sometimes we face the scenario in an enterprise environment that the database in SQL Server Always On Availability Group (AOAG) has high concurrency read and write access from application servers. If we keep using the one network interface card for both network traffic of database connections from application servers and database mirroring between AOAG […]
2025-09-01 (first published: 2023-05-08)
5,820 reads
Helping people solve T-SQL problems is one of my favorite hobbies. Someone messaged me the other day with a complex query that was almost complete except for one issue. He needed to perform a LEFT OUTER JOIN but had to filter based on a value from the right table. However, when he added the filter, SQL removed rows from the left table. The task was to decide where to place the SQL predicate: in the ON or WHERE clause.
2025-09-01
Learn about delayed durability in SQL Server and how it might help you with a heavily loaded server.
2025-08-29
8,110 reads
In Part 2, we shift focus from theory to practice. We will explore how organizations can harmoniously integrate both practi: the agility of DevOps and the resilience of SRE. During integration, it requires deliberate changes to culture, tooling, metrics, and collaboration patterns.
2025-08-29
Here's a teaser about Azure SQL Managed Instance, which isn't quite PaaS or IaaS, but isn't as locked down as you might think. This is the introduction to a three part series to follow.
2025-08-27 (first published: 2025-06-18)
3,602 reads
We are deploying a new application that uses PostgreSQL database. My manager has asked me to design high availability into the implementation. As a SQL Server database administrator, I’ve been managing PostgreSQL databases for a while. However, I’m not sure which high availability options to implement. What are the different high availability options for PostgreSQL?
2025-08-27
Columnstore indexes are a powerful tool for storing analytic data directly in SQL Server. This feature has improved in every version of SQL Server since their inception over ten years ago, and SQL Server 2025 is no exception!
2025-08-25
Learn about the TABLESAMPLE option in T-SQL and uncover some of the pitfalls of assuming this works as you think it does.
2025-08-22
2,086 reads
While Recurrent Neural Networks (RNN) are powerful, they often struggle with long-term dependencies due to the vanishing gradient problem. Long Short-Term Memory Networks (LSTMs) address this issue by introducing memory cells and gates. For beginners, understanding LSTM components, such as the input, output, and forget gates, can be challenging. This tip breaks down LSTMs in an intuitive way, highlighting their importance and practical applications.
2025-08-22
By Kevin3NF
Don’t Let Trouble Sneak Up on You Most SQL Servers run quietly. Until...
By Steve Jones
I had a conversation with a customer asking this question: how can I tell...
By Chris Yates
There was a time when the Chief Data Officer lived in the shadows of...
Comments posted to this topic are about the item Create an HTML Report on...
Hi I have a SP that occasionally get this error: Cannot resolve the collation...
Hi everyone I am getting an error when I create the index but I...
I have two calls to the GENERATE_SERIES TVF in this code:
SELECT TOP 10 gs.value FROM GENERATE_SERIES(1, 10) AS gs ORDER BY NEWID () OPTION (RECOMPILE); go DECLARE @a int = 10; SELECT TOP (@a) gs.value FROM GENERATE_SERIES(1, @a) AS gs ORDER BY NEWID () OPTION (RECOMPILE);In the actual query plans, what is the estimated number of rows for each batch in SQL Server 2022? See possible answers