Cleaning messy data With T-SQL means trimming text, parsing dates safely, and preserving rejected source rows for correction and replay.
SQL Server emergency? Email pinal@sqlauthority.com with URGENT in the subject line.
SQL SERVER – DMV sys.dm_exec_describe_first_result_set_for_object – Describes the First Result Metadata for the Module
The SQL Server 2012 DMV sys.dm_exec_describe_first_result_set_for_object describes the result columns of a stored procedure.
Triangular Joins: The Hidden Row Explosion in Self-Joins
A small grouped result can hide a huge pile of row pairs. Here is how to count them and what to do instead.
SQLAuthority News – #TechEdIn – TechEd India 2012 Memories and Photos
TechEd India 2012 in Bangalore was bigger and grander than ever. Here are my TechEd India 2012 memories and photos, a family affair as always.
SQL SERVER – Cleaning Up SQL Server Indexes – Defragmentation, Fillfactor – Video
Cleaning up SQL Server indexes starts with fragmentation. Learn the two types, when to reorganize or rebuild, and how fillfactor fits in.
SQL SERVER – FIX: ERROR Msg 5169, Level 16: FILEGROWTH cannot be greater than MAXSIZE for file
Msg 5169, FILEGROWTH cannot be greater than MAXSIZE for file, stumped a friend new to SQL Server. Here is how I recreated the error and fixed it.
SQL SERVER – Use ROLL UP Clause instead of COMPUTE BY
After an upgrade to SQL Server 2012, reports failed because COMPUTE BY is deprecated. I show how to rewrite such queries with the ROLL UP clause.
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 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.

