Device Is Not Ready is the Windows text behind operating system error 21, which SQL Server reports inside error 823. This post explains what the message means, lists the common causes, and gives read-only checks to run before any restart. It ends with the DBCC CHECKDB step that proves the database is healthy.
SQL Server emergency? Email pinal@sqlauthority.com with URGENT in the subject line.
Negative Identity Column – SQL in Sixty Seconds #101
I had a very interesting story to tell about a negative identity column from my recent Comprehensive Database Performance Health Check.
Patch Your SQL Server – SQL in Sixty Seconds #100
When did you last time patch your SQL Server? I often discuss this question with my clients, I get many different kinds of answers.
List All Parallel Queries – SQL in Sixty Seconds #098
During the recent Comprehensive Database Performance Health Check, my client asked me if I have a query which can list all the parallel queries.
Keyword Join or Inner Join – SQL in Sixty Seconds #099
Have you ever wondered what is the difference between keyword Join or Inner Join? Are they same or different? If different, how are they different?
Moving to Azure SQL Database: The Features You Give Up
Plan moving to Azure SQL Database by finding Agent jobs, cross-database references, CLR, FILESTREAM, linked servers, and recovery changes.
How to Get Rowcount of Every Table in SSMS? – Interview Question of the Week #288
Question: How to Get Rowcount of Every Table in SSMS?
Answer: After watching my earlier video on the fastest way to get the rowcount for the table,
SQL Server slow? Let's fix it together in about four hours.
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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.

