A query slowed to over 10 minutes because of a big key lookup. Here is how I optimize key lookup operations by creating an index with include columns.
SQL Server emergency? Email pinal@sqlauthority.com with URGENT in the subject line.
Puzzle – Datatime to DateTime2 Conversation in SQL Server 2017
At PASS, SQL Server expert Christopher Savage showed me a puzzle on DateTime to DateTime2 conversion in SQL Server 2017. I still have no answer, so can you solve it?
SQL SERVER – Steps to Change IP Address of SQL Server Failover Cluster Instance
Moving to a new VLAN? These are the exact steps to change the IP addresses of the Windows cluster nodes and of a SQL Server failover cluster instance.
Video – Bert & Pinal Troubleshoot a Slow Performing SQL Server
At my 10th PASS Summit, Bert Wagner and I recorded a video on how to troubleshoot a slow performing SQL Server. Here it is, with a little of the story behind it.
Multi-Column Index Key Order: Which Column Goes First
Test index key order with equality, range, and OR predicates, then use seek predicates and logical reads to choose the lead column.
SQL SERVER – Initializing the FallBack Certificate Failed With Error Code: 1, State: 20, Error Number: 0
After a service account password change, SQL Server would not start: Initializing the FallBack certificate failed, error code 1. Here is the fix.
Does Sort Order in Index Column Matters for Performance? – Interview Question of the Week #199
Does the sort order in an index column matter for performance? Yes, in some specific scenarios, and here is an example from a recent Health Check question.
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.

