The student will comprehend in-depth the topic of databases and the ERD diagram while using the development environment of the SQL Server. The field of data science and its usage in the area of business data analytics includes technologies and methods which enable collecting and processing large amounts of data from diverse – and not always organized – sources. This data enables business organizations to achieve significant business insights and to significantly improve their business performance. The course deals with the principles of SQL. Students will practice, in a computer laboratory, the varied technologies, tools, and solutions that SQL provides and will understand the connection this language has with the business world.