Marek Chmel is an IT consultant and trainer with more than 10 years' experience. He is a frequent speaker, focusing on Microsoft SQL Server, Azure, and security topics. Marek writes for Microsoft's TechnetCZSK blog and has been an MVP: Data Platform since 2012. He has earned numerous certifications, including MCSE: Data Management and Analytics, EC Council Certified Ethical Hacker, and several eLearnSecurity certifications. Marek earned his MSc (business and informatics) degree from Nottingham Trent University. He started his career as a trainer for Microsoft server courses. Later, he joined AT&T, as a principal database administrator specializing in MSSQL Server, Data Platform, and Machine Learning. Vladimír Mužný has been a freelance IT consultant, developer, and Microsoft data platform trainer since 2000. He is also a frequent speaker on local events in Czech Republic and Slovakia. His most favorite topics are not only MS SQL Server, but also data integration, data science or NoSQL topics. During his career, Vladimír has earned certifications such as MCSE: Data Management and Analytics, MVP: Data Platform and MCT. Nowadays, Vladimír is a data science enthusiast and works on data migration/integration projects also with output to machine learning models.