摘要
Oracle备用数据库建设是针对数据库系统的安全和高可用性所开展的研究项目。其关键在于应用Oracle数据库Data Guard技术,建立生产数据库的备用数据库。备用数据库与主数据库完全相同,在主数据库需要维护或者发生故障崩溃时,可以通过备用数据库的切换或替换操作,快速恢复数据库应用的服务,确保数据库系统的高可用性,从而将生产数据库维护或崩溃所造成的损失降到最低。
The safety and high-usability of a database system could be ensured for us by constructing a standby database based on Oracle technique. The key point is how to construct a standby database for a primary database using Data Guard in Oracle database. The standby database is identical to the primary database. When the primary database needs maintenance or encounters an accident and runs into breakdown, the service of applying of database should be resumed rapidly through switching or replacing the standby database, and so the high-usability of the database system is ensured and the loss should be reduced to the lowest level.
出处
《吐哈油气》
2004年第2期180-182,共3页
Tuha Oil & Gas
