A client asked about DBCC TRACEON and DBCC TRACEOFF messages in the ERRORLOG. Here is what they mean, using trace flag 1222 for deadlock logging as an example.
SQL Server emergency? Email pinal@sqlauthority.com with URGENT in the subject line.
SQL SERVER – How to Change SQL Server Collation on Microsoft Azure VM (IaaS)
Azure gallery VMs install SQL Server with SQL_Latin1_General_CP1_CI_AS. Here is how to change SQL Server Collation on such a VM by rebuilding system databases.
MySQL – Different Methods to Know Current User
Why check the current user in MySQL? For audits, permissions and custom logic. Here are the methods, from user() and current_user() to mysql.user.
SQL SERVER – Who Changed the Password of SQL Login? – Interview Question of the Week #065
Who changed the password of your SQL Login? It is a real world question every DBA faces one day. Bookmark this post, here is how to find the answer.
SQL SERVER – FIX: Could not connect because the maximum number of 1 user connections has already been reached
A client changed one setting, restarted and nobody could connect: the maximum number of 1 user connections has already been reached. Here is how we got in.
SQL SERVER 2016 – Early Thoughts and Observations – Notes from the Field #120
SQL Server 2016 is almost here, while many still run 2014. In Notes from the Field #120, Mike Lawell shares SQL Server 2016 – Early Thoughts and Observations.
SQL SERVER – Finding If Status of Bulk Logging Enabled or Not From Logs
A friend’s SSIS jobs switch a database to Bulk-Logged and back again. Here is how to find which of his log backups ran with Bulk Logging Enabled.
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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.

