Ph.D. McGill University, 1983 Computer Science	Dissertation: Algorithms and Data Structures for the Implementation of a Relational Database System. Main contributions included earliest z-order algorithms, which unified many existing "multidimensional" search structures; and extensions of extensible and linear hashing.
M.Sc. McGill University, 1979 Computer Science	Dissertation: Optimization of Queries to a Relational Database. Theoretical work leading to a novel optimization. Proved the practicality of the idea on a research DBMS. First year of M.Sc. studies was spent at New York University.
B.Sc. (Great Distinction) McGill University, 1977 Mathematics and Biology