A UPIKM database system with an integrated XML interface is disclosed. The system is more efficient and returns search requests more rapidly in light of the database structure and interaction. This is in-part accomplished by each of the tables having only one key to distinguish a record that is to be used by one application from the record of another application. The system combines up to two database system operations into an integrated system such that up to two search methods can be performed with each search request and the retrieved information is based on these two search methods. The search requests are generated by the system user through the XML interface such that the requests are presented to the UPIKM database system in XML and the responses from the UPIKM database system to the XML interface are in XML. This structure permits a variety of applications to be supported by the present invention with a minimal need for the use of programmers.