This thesis studies a relational database system, FODAS, whose design and implementation are based on the multi-level architecture. FODAS consists of three-level database interface : user interface, high-level interface, and low-level interface. Among those, the database low-level interface is the main focus of this thesis. The low-level interfaces are further subdivided into system catalog containing database informations and access method functions supporting the high-level interface.
The access method functions are implemented on RMS, VAX-11 file system.
