Find orphaned users after a SQL Server restore, compare user and login SIDs, and repair the intended mapping with ALTER USER.
SQL SERVER – FIX : Error 945 Database cannot be opened due to inaccessible files or insufficient memory or disk space. See the SQL Server error log for details
Error 945 means the database cannot be opened due to inaccessible files or low disk space. My four checks: disk space, autogrow, permissions and read only files.
MSSQL or MySQL? Clearing Up the Name Mix-Up
MSSQL or MySQL? The names are one letter apart and the products are not. Here’s who makes each, and the syntax differences that trip people up.
Why SQL Server Has Cumulative Updates, Not Service Packs
Understand why SQL Server uses Cumulative Updates instead of service packs, what each CU contains, and how to plan a reliable patch cycle.
Index Maintenance on Modern Storage
Index maintenance on modern storage needs query evidence, page density, and statistics checks before you choose a rebuild or lighter action.
SQLAuthority News – Birthday of SQL Authority Author
Today is the birthday of the SQL Authority Author, and my thought of the day is a simple one that I truly believe: family is everything.
SQL SERVER – Data Warehousing Interview Questions and Answers Complete List Download
My Data Warehousing interview questions and answers complete list, with links to every part of the series and one PDF to download.
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.
Want your whole team to learn it?
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.
Over 400 customers have worked with me this way, and not one shared a password. See all consulting options.
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 120 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.

