Information support for management systems. Designing a database with tasks. Textbook

The textbook describes the relational data model, the method of designing relational databases using the "entity-relationship" approach, and the method of normalizing relationships. SQL operators are discussed. A list of topics for independent database design is provided. The sequence of steps for creating a database is shown. For clarity, an example is accompanied by scripts developed for the MS SQL Server database management system. The textbook is intended for students in the field of "Management in Technical Systems" with a specialization in "Management and Informatics in Technical Systems," as well as students in the field of "Computer Security" with a specialization in "Information Security of IT Objects based on Computer Systems."