摘要 : Database system is the infrastructure of the modern information system. The R & D in the database system and its technologies is one of the important research topics in the field. The database R & D in China took off later but it ... 展开 Database system is the infrastructure of the modern information system. The R & D in the database system and its technologies is one of the important research topics in the field. The database R & D in China took off later but it moves along by giant steps. This report presents the achievements Renmin University of China (RUC) has made in the past 25 years and at the same time addresses some of the research projects we, RUC, are currently working on. The National Natural Science Foundation of China supports and initiates most of our research projects and these successfully conducted projects have produced fruitful results. 收起