Using psycopg2 to Connect Python to PostgreSQL
Learn how to connect to a PostgreSQL database from Python with this popular library.
Why CQRS and Event Sourcing Are Gaining Ground in High-Concurrency Web Systems
In web app development company boardrooms, architects and engineers are debating old assumptions. Scaling up isn’t just about faster servers or better caching anymore. It’s about reshaping how systems think. CQRS (Command Query Responsibility Segregation) and Event Sourcing are no longer fringe ideas. They’re becoming default choices in high-concurrency systems where consistency, auditability, and performance […]
Working with Indexes on SSMS
Overview In SQL Server, indexing is a technique used to improve the performance of queries by reducing the amount of data that SQL Server needs to scan. You can think of it like a table of contents in a book—it helps SQL Server find data more quickly. In this article, we will cover the following […]
Yet another Date Dimension
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 […]
Add a Second NIC for an Availability Group to Separate Network Traffic
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 […]
How Much Can You Learn?
This Friday Steve Jones wonders about the upper limits for what you may learn in a year.
Picking the ON or WHERE Clause for the SQL Predicate
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.
Data Sovereignty in the Cloud
Steve has a few thoughts on the lack of data sovereignty in the cloud, with an outlook that isn't very positive.
What is Delayed Durability in SQL Server — And Should You Turn It On?
Learn about delayed durability in SQL Server and how it might help you with a heavily loaded server.
DevOps vs. SRE: Bridging the Gap, Not Building Walls
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.
Blogs
Becoming a creator, my website experience
By DataOnWheels
Over the past few months, I have debated starting a new blog to discuss...
T-SQL Tuesday #192 Invitation: SQL Server 2025 Excitement
By Steve Jones
It’s that time of the month again, and once again, I’m late and I’m...
The Book of Redgate: What Our Customers Say
By Steve Jones
This is from 2010, but I loved that people felt this way about Redgate...
Forums
fast farward curson vs while loop on @table
hi, need to known weather fast farwand cursor is faster than a while loop...
Economics of AI: What is the Real Cost to Profit?
Comments posted to this topic are about the item Economics of AI: What is...
Poor Name Choice
Comments posted to this topic are about the item Poor Name Choice
Question of the Day
Getting the Indexed Columns
I run this code on SQL Server 2022 to get a list of all the indexes and their key columns. What is returned?
SELECT
INDEX_COL (N'AdventureWorks2017.Sales.SalesOrderDetail') See possible answers