Getting Cannot open database requested by the login for NT AUTHORITY\NETWORK SERVICE? Map that login to your database under User Mapping.
SQL Server emergency? Email pinal@sqlauthority.com with URGENT in the subject line.
Joining Two History Tables at a Point in Time With FOR SYSTEM_TIME AS OF
Use FOR SYSTEM_TIME AS OF to join temporal tables at one UTC instant, compare range forms, and index the history lookup correctly.
SQLAuthority News – Beyond Relational Interview on SQL Server 2008 Beyond Relational
Jacob Sebastian interviewed me on Beyond Relational: what the term means, and why it builds on relational databases instead of moving away from them.
SQL SERVER – Measure CPU Pressure – Detect CPU Pressure
How to measure CPU pressure in SQL Server and tell whether your server needs a faster CPU or more CPUs, using simple scripts and signs.
Evaluating a New SQL Server Version in One Week
Evaluating a New SQL Server Version in one week works when you install, restore, run a real workload, compare results, and write a decision.
SQL SERVER – Introduction to Change Data Capture (CDC) in SQL Server 2008
My first article on Simple-Talk introduces Change Data Capture in SQL Server 2008, which records INSERTs, UPDATEs and DELETEs in simple relational change tables.
SQLAuthority News – USB Drive Fails to Copy Large File
My USB drive refused to copy a 15 GB file with a not enough free disk space error. The cause was FAT32 and its 4 GB limit; NTFS has no such limit.
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.

