Introduction Every DML transaction reads the data before it makes any changes. Not only during a SELECT query, but when you run any DML statement, insert, update, or delete, SQL Server first fetches a bunch of pages into the buffer pool locating the desired rows and changes them while synchronously writing to the transaction log […]
How to extend the range of SQL code analysis, during database development, to include dynamic analysis of the database metadata. This will allow regular checks for problems with the design of your tables and indexes ("table smells") that can affect database performance and data integrity.
In this tip we look at the Sequence Number feature in SQL Server and compare it to the use of identity columns.
There was a recent discussion in the forums here at SQL Server Central regarding the difficulties presented by the constantly shifting technology landscape. The core question was, how on earth do you master stuff? Especially, how do you master things when they're both new and constantly changing? Honestly, you don't. I mean, you can, but […]
Today Steve wonders what advice you might give someone starting out their career in technology.
As SQL developers, we tend to think of performance tuning in terms of crafting the best table indices, avoiding scalar and table valued functions, and analyzing query plans (among other things). But sometimes going back to the spec and applying some properties of elementary math can be the best way to begin to improve performance of SQL queries which implement mathematical formulas. This article is a case study of how I used this technique to optimize my SQL implementation of the Inverse Simpson Index.
With both personal experience and the real world evidence to back it up, Grant Fritchey says, unequivocally, a well-implemented DevOps process helps the organization. But it's not always easy to bridge a siloed organization, and sometimes organizations adopt DevOps for the wrong reasons.
In this article we cover how to get started with MLflow using Azure Databricks which manages the end-to-end machine learning lifecycle.
The use of cloud databases is growing, and Azure SQL Database is one of the more popular ones.
Before you alter a database object, you need to understand what other objects will be affected. This article shows how to generate a simple dependency diagram that reveals both those objects that reference the target object, and those referenced by it, and includes foreign key references, column references and all the other details you need.
By Brian Kelley
I am guilty as charged. The quote was in reference to how people argue...
By Steve Jones
Learn how to tie a bowline knot. Practice in the dark. With one hand....
By HeyMo0sh
As a DevOps practitioner, I’ve always focused on performance, scalability, and automation. But as...
Hi, I have a SQL Server instance where users connect to via Windows Authentication,...
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I have a query from a former DBA that we run on SQL Server 2025 to check on database metadata. This query references sys.sysaltfiles. I want to refactor this code to be more modern. Which DMV should I reference instead?
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