RDBMS is based on firm mathematics set theory with simple and clear data structure,and powerful query function,so it has become the basic technology for realization of information system.

• 因为RDBMS是建立在严格的数学集合论基础上的，数据结构简单、清晰，具有强大的查询能力，RDBMS成为实现信息系统的基本技术。