Revisiting SQL Server Window Functions- A Practical Walkthrough
A look at window functions in SQL and how they can be used to query data without the restrictions of a GROUP BY.
The Security of Old Tech
Older technology can introduce security issues, along with performance ones. Keeping your systems somewhat up to date is important for security.
How to Increase SQL Server Column Width Without IO (Input/Output) Overhead
This article dives into a fun (and interesting!) strategy for widening fixed-width columns in SQL Server, to reduce downtime, risk, and runtime at the time when a column’s data type needs to be changed.
Password Guidance
Passwords are essential and also a problem in many organizations. Guidance has changed over the years and Steve has a few thoughts on what's recommended today.
Stairway to Transaction Log Management in SQL Server, Level 9: Monitoring the Transaction Log
Our major goal in terms of log maintenance for all databases under our care is to optimize for write performance, in order to support all activities that require SQL Server to write to the log, including data modifications, data loads, index rebuilds, and so on. However, it's also important to keep an eye on possible log fragmentation, which, as described previously, can affect the performance of processes that need to read the log, such as log backups and the crash recovery process.
A Rolling Filtered Index in SQL Server
I recently resolved an issue where a query pulling data from the last 30 days would time out due to the table’s size and the lack of a supporting index. Creating a supporting index is possible, but not ideal; it will be very large and may not be useful for most queries and use cases. I wonder how I could implement a filtered index that follows time and is always limited to the last n days.
Requiring Technical Debt Payments
Steve found someone using an interesting approach to get developers to address some technical debt.
Using the FP-Growth Algorithm to Mine Useful Patterns in Data
This article looks at using the FP-Growth algorithm from Python to mine data in SQL Server.
How to Use the New PRODUCT() Function in SQL Server 2025
Introduced in SQL Server 2025 CTP 1.3, the PRODUCT() function acts similarly to SUM(), but multiplies values rather than adds them. It is an aggregate function in SQL Server and therefore operates on a data set, rather than on scalar values.
Blogs
The Fringe Festival
By Steve Jones
I was lucky enough to take a vacation a decade ago in Edinburgh with...
Demo for Parameter Sniffing and Memory Grant Feedback
Disclaimer: The following is built with Claude Code. Just need to justify my $100/mo...
My Social Media Rules
By Brian Kelley
I developed these rules a while back, before COVID. I had a period of...
Forums
The SQL Server MCP Server
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The Hidden Danger of Wildcard Operators In Join Operations
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A Worse Computer; A Better Car
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Question of the Day
The SQL Server MCP Server
How do I get an MCP server for my SQL Server 2025 database from Microsoft?
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