The topic of this final thesis relates to the structural foundations of databases, their operation and organization within the company's operations, as well as a focus on a practical example of database management and organization in relation to Croatian Post. In the second chapter of the paper, during the presentation of the basics of information and data, the fundamental factors of the database, we distinguish databases into models, determine the role of administration in the database system, when specifying database management procedures, the SQL link with database management is determined, and the development of security and technological trends in the database is investigated. In the third chapter of the final paper, the operation and organization of the company's business is discussed, where the architectural approach to corporate strategy and business models is explored, further the focus is placed on the functional approach for the rapid realization of business value, during which the engineering information of the business environment and the database are modeled, after which the complete development of the control language product is explored. In the final chapter, the central focus is a practical example of the management and organization of Croatian Post. databases.