Dejan Sarka, MCT and SQL Server MVP located in Ljubljana, Slovenia, is an independent trainer and consultant who focuses on the development of database and business intelligence applications. Besides his projects, he spends around half of his time training and mentoring. He is the founder of the Slovenian SQL Server and .NET Users Group. Dejan is the main author and co-author of many books and courses about databases and SQL Server. He is a frequent speaker at many worldwide events. Milos Radivojevic is a database consultant in Vienna, Austria. He is a Data Platform MVP and specializes in SQL Server for application developers and performance/ query tuning. Currently, he works as a principal database consultant in bwin (GVC Holdings)—the largest regulated online gaming company in the world. Milos is a cofounder of PASS Austria. He is also a speaker at international conferences and speaks regularly at SQL Saturday events and PASS Austria meetings. William Durkin Data Platform Architect for Data Masterminds. He uses his decade of experience with SQL Server to help multinational corporations achieve their data management goals. Born in the UK and now based in Germany, William is a regular speaker at conferences around the globe, a Data Platform MVP, and the founder of the popular SQLGrillen event.