John (@SQLDiplomat)John is a Product Manager for SentryOne, responsible for the SQL Sentry and core monitoring solutions. Working to understand what Data Professionals need and looking to deliver these capabilities effectively and efficiently.

Prior to joining SentryOne, John worked as a Premier Field Engineer for Microsoft based in the UK, working with a wide array of customers in many different industries that make use of SQL Server and the Microsoft Azure platform. Having worked with SQL Server for the last decade, John has gained a level of experience as a DBA, Developer and in the Business Intelligence sphere and has a broad understanding of how you can use, and misuse, SQL Server.


SQL Server normally relies on concurrency models in order to maintain the Isolation in ACID. As systems scale, this method can go from being a benefit to a hindrance, limiting the concurrency for our applications and hurting performance.