A method of reorganizing an IMS database. The method creates, in a storage device, a header data structure containing information about the size and key structure of the database. Next, the number of sequential files to be used for temporary storage of data from the database and the desired number...http://www.google.de/patents/US5761667?utm_source=gb-gplus-sharePatent US5761667 - Method of optimizing database organization using sequential unload/load operations 
