Build Parquet exports from SQL Server 2022 with PolyBase CETAS, S3-compatible storage, and checks for rows, types, and files.
SQL Server emergency? Email pinal@sqlauthority.com with URGENT in the subject line.
IGNORE NULLS in SQL Server 2022: Carrying the Last Known Value Forward
Use IGNORE NULLS for forward-filled readings, find the next known value, and compare the older running-count grouping method carefully.
TOP N Sort: Why a Small TOP Still Reads the Whole Table
Explain TOP N Sort, compare an indexed ordered access path, and align filter and sort keys before adding indexes for frequent requests.
How Blogging Has Changed: From Online Diaries to Newsletters
How blogging has changed is the story of one garden. It grew from online diaries and hand-built pages into blog software, feeds, short updates and newsletters. Through all of it, the useful, honest and regular post stayed the same.
SQL SERVER – List All Available TimeZone
sys.time_zone_info lists timezone names and their current offsets. My SQL Server 2019 environment returned 141 rows.
CPU Running 100% – SQL in Sixty Seconds #185
I got lots of responses to this blog and people wanted me to create a video for this topic. Here, I have a video for CPU Running 100%.
SQL SERVER – Measure Index Performance
I measure index performance against the same workload before and after a change. A customer wanted to assess a new index.
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.

