This article reveals a critical SQL Server flaw: attackers can weaponize Date Correlation Optimization (DCO) views in restored backups
2026-02-13
We need to find out how many times certain strings appear in a column. We’ve used the LEN and REPLACE functions for years, but recently heard about REGEXP_COUNT and want to evaluate it, since we plan to upgrade to SQL Server 2025. How can we test this new feature?
2026-02-11
Data fabric, data lakehouse, and data mesh have recently appeared as viable alternatives to the modern data warehouse. These new architectures have solid benefits, but they're also surrounded by a lot of hyperbole and confusion. This practical book provides a guided tour of these architectures to help data professionals understand the pros and cons of each.
2026-02-09 (first published: 2024-02-29)
5,926 reads
An experienced exam writer explains common misconceptions about Microsoft certification exams, question design, preparation, and real-world expectations.
2026-02-09
In my previous tip, Pagination Performance in SQL Server, I showed how to make SQL pagination more predictable – turning O(n) into O(1). I materialized and cached row numbers to page through instead of calculating them on every request. It wasn’t the whole story, though; real pagination queries rarely get to sort without filtering. Users always want more control, and filtering can threaten that predictability.
2026-02-06
This is another part in my series designed to offer guidance around common issues in SQL Server. Today, let’s talk about the all-too-common error: invalid length.
2026-02-04
This seems like the appropriate first BrentOzar.com blog post in the year 2026, eh?
2026-02-02
This article is a follow-up to SQL Server DBaaS Vulnerability: Decrypting System Code & Exfiltrating User Data, in which we saw some vulnerabilities that affected pretty much all DBaaS offerings available in the cloud. Now, we’ll look at another vulnerability that once again affects every major cloud vendor.
2026-01-30
I need a structured reference guide to help me get started or expand on Power BI knowledge. I want to be able to bookmark a resource and then use it daily when needed as I build my data sets, reports, and dashboards. Can you please enumerate some common and helpful resources as a Power BI Quick Reference guide?
2026-01-28
Easily move data from SQL Server to Oracle 26ai Free with this step-by-step guide.
2026-01-26
By HeyMo0sh
As a DevOps professional, I’ve seen firsthand how cloud costs can quickly spiral out...
By Steve Jones
AI is everywhere. It’s in the news, it’s being added to every product, management...
By Vinay Thakur
RAG — Retrieval Augmented Generation. we have covered so far — embeddings, vectors, vector...
Hi, ssms is free here. I can think of other reasons to do this...
I've written some documentation on using different Markdown types of files on GitHub. It's...
Comments posted to this topic are about the item Not Just an Upgrade
I am doing development work on a database and want to keep a backup so I can reset my database. I make some changes and want to restore over top of my changes. When I run this code, what happens?
USE Master BACKUP DATABASE DNRTest TO DISK = 'dnrtest.bak' GO USE DNRTest GO CREATE TABLE MyTest(myid INT) GO USE master RESTORE DATABASE DNRTest FROM DISK = 'dnrtest.bak' WITH REPLACESee possible answers