Database Theory Column Victor V i a n u University o f California San Diego vianu@cs.ucsd.edu The following guest column, by Mihalis Yannakakis, is based on his invited talk at F O C S ' 9 5 . It is a survey o f database theory addressed to computer science theoreticians. Perspectives on Database Theory Mihalis Y a n n a k a k i s Bell Laboratories Murray Hill, NJ 07974 Dedicated to the memory o f Paris C. Kanellakis 1. I N T R O D U C T I O N Database m a n a g e m e n t systems address the need to store, retrieve, and manipulate large amounts o f data in an organized fashion. The database field has grown tremendously in the last 25 years. It is reported that the database industry generated $7 billion in revenue in 1994 and is growing at a rate o f 35% per year [Gr2]. Industrial and academic research have been instrumental to this growth. Theory has played an important role in defining the right abstractions and concepts, and providing a firm foundation for the field. In order to access effectively a large
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