1. Introduction -- 2. Designing an Optimizer for Parallel Relational Systems -- 3. New Approaches to Parallel Join Utilizing Page Connectivity Information -- 4. A Performance Evaluation Tool for Parallel Database Systems -- 5. Load Placement in Distributed High-Performance Database Systems -- 6. Modeling Recovery in Client-Server Database Systems -- 7. Parallel Strategies for a Petabyte Multimedia Database Computer -- 8. The MEDUSA Project -- 9. System Software of the Super Database Computer SDC-II -- 10. Data Placement in Parallel Database Systems