The importance of database management in the theoretical sense is analyzed in this final work. Specifically, here is analyzed process of database management by the assistant head of the department. In order to achieve a productive enterprise, the assistant head of the department shall, before the final calculation and analysis of productivity, check and edit any errors and to track and update files and a number of other activities that are presented in this paper. The process of data extraction from SAP and click system for all employees, via their editing, to the final calculation of productivity, consists of many steps. Each activity in the system must be extracted separately in the Excel file and, after possible corrections, all together are merged in the final file. The aim of this final work is to demonstrate how the assistant head of the department in the company XY processing data with the aim of increasing productivity of work. For the purpose of the dissertation, a fictitious database was created based on those from company XY. Also, professional literature dealing with this issue was used. Based on the results it can be concluded that the job of assistant head of department is extremely demanding and requires advanced knowledge of Excel and information systems.