System and methods are described for efficient storage and processing of non-uniform data records. An exemplary embodiment includes a Databank system having a Database Engine, a Database Engine API (Application Program Interface), a Databank Engine, a Databank Engine Class Interface, and...http://www.google.com.tw/patents/US5682524?utm_source=gb-gplus-share專利 US5682524 - Databank system with methods for efficiently storing non-uniform data records 
