数据库系统概论 An Introduction to Dafabase Systems 中国人民大学傖岚学院 Department of computer science, School of Information Renmin university of china 2006 An Introduction to Database SystemAn Introduction to Database Systems 中国人民大学信息学院 数据库系统概论 An Introduction to Database Systems Department of Computer Science, School of Information Renmin University of China 2006