He is a frequent speaker at many UK user groups. He is primarily interested in database internals and change management. At Red Gate he has designed and led the development of many database tools that compare schemata and enable source control for databases (SQL Compare versions 4 to 8), refactor databases (SQL Refactor) and show the history of databases by analyzing the transaction log (SQL Log Rescue). András has a PhD from Cambridge and an MSc and BSc from ELTE, Hungary. Managing change in the database world