Method and apparatus for generating a database of a database query, and a search method and search apparatus for database query

The invention relates to a method and apparatus for generating a database. Here, information values ​​with the aid of nodes and directed edges, describe the dependencies between two nodes or information values ​​arranged in the form of a directed graph for the database query. By using a path distance, a number of directed edges between a selected node and a Zieltupel consisting of two connected with a directed edge node and the corresponding directed edge, describes, a reduction of complexity of a database query, and thus an acceleration of the database query be achieved. The invention further comprises a search method and a search device to query the database described. The invention is for example applicable to monitoring equipment or in medical databases. Furthermore, the invention can be used for databases that are dynamically expanded, for example by new events in the monitoring device.