"ULLMAN, JEFFREY D." "A FIRST COURSE IN DATABASE SYSTEMS." - "CHINA" "PRENTICE- HALL" "1997" - "XV; 470P.;21CM "N" ISBN: "7-302-02829-X" Subjects--Topical Terms: 1. DATABASE SYSTEMS Subjects--Index Terms: "Y" LC Class. No.: QA76.9 .D3 / .U45