The technology of database develops from hiberarchy database , retiform database to relational database , even oo database , that has become to the base of information system . since 90 ' s , as a kind of language of network programming , java makes best use of network resources and it ' s portable , cross - platform , reusable and extendable 数据库技术经历了从层次数据库、网状数据库到关系数据库以及面向对象数据库的发展，已成为计算机信息系统中的重要基础和支柱，并在传统的商业和事务处理等领域内趋于成熟。
