Attaching a database gave me Error 948: a downgrade path is not supported. Here is why a database from a newer SQL Server version won’t open on an older one.
SQL Server emergency? Email pinal@sqlauthority.com with URGENT in the subject line.
SQL SERVER – Identifying InMemory OLTP Hash Collisions
A follow-up to my post on hash collisions: DMV queries that help with identifying InMemory OLTP Hash Collisions caused by a poorly chosen bucket count.
Pester the Tester: PowerShell Bugs, Beware! – Notes from the Field #129
Pester the Tester: Robert Cain shows how Pester, an open source testing framework for PowerShell, helps you catch bugs before they catch you.
SQL SERVER – SQL Profiler vs Extended Events
SQL Profiler or Extended Events? I compare how each one works, why SQL Trace adds overhead on a busy server, and why Extended Events is my choice.
SQL SERVER – FIX – Linked Server Error 7416 – Access to the remote server is denied because no login-mapping exists
Linked Server Error 7416: access to the remote server is denied because no login-mapping exists. What the message means and how to fix the login mapping.
SQL SERVER – Event ID 7000 – The service did not start due to a logon failure
SQL Server did not start after a reboot and the event log showed Event ID 7000, the service did not start due to a logon failure. Here is the cause and the fix.
What is a Master Database in SQL Server? – Interview Question of the Week #076
A reader told me he had dropped his master database. So here is the basic question: what is a master database in SQL Server, and why does it matter?
SQL Server slow? Let's fix it together in about four hours.
In my Comprehensive Database Performance Health Check, you share your screen, I guide you, and we fix your biggest performance troublemakers. No passwords. No remote access.
You keep every script, and the know-how to fix it yourself next time.
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My Practical Workshop has no PowerPoint, just live demos. My AI Enablement Workshop shows your team where AI saves hours, and where it quietly costs them.
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Who We Are
Pinal Dave is an SQL Server Performance Tuning Expert and independent consultant with over 24 years of hands-on experience. He holds a Masters of Science degree and numerous database certifications.
Pinal has authored 19 books and 125 Pluralsight courses. To freely share his knowledge and help others build their expertise, Pinal has also written more than 5,800 database tech articles on his blog at https://blog.sqlauthority.com.
Pinal is also a CrossFit Level 1 Trainer (CF-L1) and CrossFit Level 2 Trainer (CF-L2).
Nupur Dave is a social media enthusiast and an independent consultant. She primarily focuses on the database domain, helping clients build short and long-term multi-channel campaigns to drive leads for their sales pipeline.
Shaivi Pinalkumar Dave is a book author and a women’s artistic gymnast.

