Patent US 5,452,450

A database network management method ensures consistency of modifications to data in a network of databases comprising a relational database which constitutes a reference database and at least one further database accessible in real time. The data of the relational database is duplicated at least in part in the further databases accessible in real time. To enable an application process to modify data in all of the database network, the method is as follows: (1) A data modification request in the SQL language is sent from the application process to a pool of server processes of a relational database management system, (2) a server process is assigned to the request for the duration of its processing, (3) the modification request in the dynamic SQL language is sent from the server process pool to a relational database management system and the request is executed, (4) the further databases in accessible in real time to which the modification request relates are determined, (5) the request is transferred to the further databases in a form compatible with a management system of each further database concerned, and (6) the modification request is executed in each further database concerned.