They present an important facet of modern database mgt. Another area relates to indexing techniques in object-oriented systems. Investigate dierent strategies for recursive query processing. Modeling of deductive databases with graphs and nets.
Query optimization is an important aspect of relational database design.
In this project, query optimization techniques are overviewed and evaluated. The universal relation is criticized by dierent authors while defended and advocated by others. This project would review the universal relation and perform a critical study of its advantages and drawbacks. Parallel sorting algorithms would be studied in this project. The existence of nulls presents some problems in database design.