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Joe Sack is a Principal Program Manager on the Microsoft SQL Server Database Systems team. He has worked as a SQL Server professional since 1997 and has supported and developed for SQL Server environments in financial services, IT consulting, manufacturing, retail and the real estate industry.

Paul Randal is the CEO of SQLskills.com, which he runs with his wife Kimberly L. Tripp. Both Paul and Kimberly are very widely known and respected experts in the SQL Server world, and both are long-time SQL Server MVPs. Click here for a full bio.

Tim is a Principal Consultant with SQLskills, and has worked in a variety of roles, including DBA, Lead DBA, and multi-department manager. He is a SQL Server MVP, has a whole collection of Microsoft and other industry certifications, and is very active and passionate in the SQL Community. You can see his full bio here.

Itzik Ben-Gan is a T-SQL trainer and a co-founder of Lucient. A Data Platform Microsoft MVP (Most Valuable Professional) since 1999, Itzik has delivered numerous training events around the world focused on T-SQL Querying, Query Tuning and Programming. Itzik authored many articles and books including T-SQL Fundamentals and T-SQL Querying. Itzik’s speaking activities include SQLPASS, SQLBits, and other Microsoft Data Platform events. Itzik is the author of Lucient’s Advanced T-SQL Querying, Programming and Tuning and T-SQL Fundamentals courses along with being a primary resource within the company for their T-SQL related activities.

Erin Stellato is a Principal Consultant with SQLskills and a SQL Server MVP. She has worked as a SQL Server professional since 2003, and has provided support for SQL Server environments across a variety of industries including healthcare, insurance, finance and government. Click here for a full bio.

Owner/Principal with LobsterPot Solutions (a MS Gold Partner consulting firm), Microsoft Certified Master, Microsoft MVP (SQL Server, since 2006), and leader of the Data & Analytics User Group in Adelaide, Australia. Rob provides consulting and training courses around the world in SQL and BI topics. He is a former director of PASS, co-wrote Professional SQL Server 2012 Internals and Troubleshooting, wrote chapters for two charity-driven books, "SQL Server MVP Deep Dives and SQL Server MVP Deep Dives Volume 2, and writes a blog at blogs.lobsterpot.com.au.

Aaron is a Staff Database Reliability Engineer at Stack Overflow. We don't want to say he's old, but his experience dates back to a time when SQL Server 6.5 was considered "modern." He writes here at sqlperformance.com, over at sqlblog.org, and at MSSQLTips.

Glenn has worked as a SQL Server professional for many years in a variety of roles, and has been a SQL Server MVP since 2007. He holds a whole collection of Microsoft certifications, including MCITP, MCDBA, MCSE, MCSD, MCAD, and MCTS, which proves that he likes to take tests. His expertise includes DMVs, high availability, hardware selection and configuration, and performance tuning. Glenn is heavily involved in the SQL Server community, and is a frequent speaker at user groups, SQL Saturdays, and the PASS Community Summit. He is the author of the book SQL Server Hardware, and he wrote chapters for SQL Server MVP Deep Dives and SQL Server MVP Deep Dives Volume 2 books. Glenn's blog is at sqlserverperformance.wordpress.com and he can be reached on Twitter at @GlennAlanBerry.

Jonathan Kehayias is a Principal Consultant with SQLskills. He is the youngest person ever to achieve the Microsoft Certified Master - SQL Server 2008 certification and has been a SQL Server MVP for many years. Click here for a full bio.

Jason (@SQLSaurus) has many certifications, including MCSE, MCP + Internet, MCSD, MCPS, and MCPD Enterprise App Development. Jason also blogs at the SentryOne team blog.

Kevin Kline (@kekline) is a renowned database expert and software industry veteran. A long-time Microsoft SQL Server MVP and noted leader in the IT industry, Kevin is a founder and former president of PASS and the author of popular IT books like SQL in a Nutshell. Kevin is a top-rated speaker at industry trade shows worldwide. He also blogs at http://KevinEKline.com and blogs.sentryone.com.

Paul White (@SQL_Kiwi) is an independent SQL Server technical consultant with 25 years experience, specializing in performance tuning the SQL Server Core Engine, and is well known for his expertise in execution plans, the query processor, and the query optimizer. Currently living in New Zealand, Paul writes the SQL Server internals blog Page Free Space. Over the years, Paul has worked internationally on a number of high-volume critical systems where ultimate performance and reliability were the primary goals. A SQL Server MVP from 2011 to 2022, he contributes regularly to a range of web sites and forums, including Database Administrators Stack Exchange. Paul has also spoken at a variety of user groups and community events such as SQL Saturdays and the annual SQL Pass Summit.

Greg is founder and Chief Scientist at SentryOne. He is a Microsoft developer by background and has been working with SQL Server since the mid 90s. He is perpetually engaged in the design and development of SQL Sentry, Plan Explorer and other SentryOne solutions for optimizing performance on the Microsoft Data Platform.

In addition to our official roster, SQLPerformance.com occasionally publishes content from community bloggers. Our current guest bloggers are mostly members of the SentryOne Product Advisory Council (PAC) who have offered to provide content from their unique real-world experience and perspective. Recent and upcoming guest bloggers include Derik Hammer, Dan Holmes, Andy Mallon, Monica Rathbun, Michael J. Swart, and Bert Wagner.