Import substitution of software: adaptation of the client part of the application to work with PostgreSQL

The article examines the process of import substitution of the Administrator-tor-D software package in the context of implementing support for the PostgreSQL open-source database management system in its client part. As part of the study, a universal DbClient module was developed in the C# programming language, which abstracts interaction with various types of databases (Microsoft SQL Server, PostgreSQL). Particular attention is paid to the technical aspects of this process. Test results are presented demonstrating the effectiveness of implementation and high performance of the developed solution.