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分布式数据库系统是数据库技术与网络技术的结合.该文深入探讨了在 ORACLE基础上 开发公布式数据库系统的访问安全策略与恢复安全策略.“,”DDBS is the combination Of database and network technology. In the paper, the access and resume security strategy of DDBS based on Oracle are discussed.