Common Misconceptions About Microsoft Certification Exams
An experienced exam writer explains common misconceptions about Microsoft certification exams, question design, preparation, and real-world expectations.
2026-02-09
Additional Articles
How Filters and Sorting can Derail SQL Pagination Performance
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
Common SQL Server Problems: Invalid Length
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
Database Development with AI in 2026
This seems like the appropriate first BrentOzar.com blog post in the year 2026, eh?
2026-02-02
Exploiting SQL Server Date Correlation Optimization: How Tampered Backups Enable Cross-Database Data Leaks
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
Power BI Quick Reference Guide
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
How to Create a SQL Server Linked Server to Oracle 26ai Free
Easily move data from SQL Server to Oracle 26ai Free with this step-by-step guide.
2026-01-26
Sending messages to Slack from SQL Server 2025
In an earlier tip, A history of accessing REST APIs and web pages from SQL Server, I talked about reaching out to external endpoints from SQL Server, including the new sys.sp_invoke_external_rest_endpoint procedure that hit the on-premises editions in SQL Server 2025. This seemed like an ideal use case to enhance our current solution for sending a message to Slack: using xp_cmdshell to call a PowerShell script that calls Invoke-RestMethod. In this tip, I’ll describe how we changed our implementation and why it is a marked improvement for us.
2026-01-23
How to View SQL Server Object Code Easily with sp_showcode
sp_helptext has served SQL Server DBAs for years, but it has its very obvious – and many – limitations: broken lines, missing triggers, no help with encrypted objects, to name just a few. That’s where sp_showcode comes in…
2026-01-21
Find Missing SQL Server Data with NOT EXISTS
After years of writing T-SQL a certain way, changing can be tough. When comparing tables for missing rows, developers often use LEFT JOIN.
2026-01-19
Blogs
Claude AI Convinced Me Not to Build an iPad App
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I had a customer ask about analyzing their Test Data Manager (TDM) usage to...
Forums
Data Warehouse Toolkit meets Star Schema: The Complete Reference
Is there a good syllabus for reading these two together? (Yes, it's called the...
GPX distance and time analysis in SQL Server
Comments posted to this topic are about the item GPX distance and time analysis...
The DBA is Dead; Long Live the DBA
Comments posted to this topic are about the item The DBA is Dead; Long...
Question of the Day
Changing the AG Listener
In SQL Server 2025, if I want to remove an IP from a listener, what do I do?
See possible answers