基于增量更新的ORACLE数据库快速备份恢复技术

Rapid Backup and Recovery Technology for ORACLE Database Based on Incrementally Updated Backup

备份恢复是保障数据库安全的重要技术手段,ORACLE常规备份方法需要定期进行全备,在恢复数据库时需要进行耗时长的转储操作,而基于增量更新的备份恢复是ORACLE数据库的一种高级备份恢复技术,秉持对数据库只进行首次全量备份,之后永远进行增量备份的理念,相较于常规备份恢复方法无需定期进行全备,只需定期进行增备,可显著缩短备份耗时时长,降低备份过程对数据库性能的影响程度,又可在数据库遭受严重故障需要紧急恢复运行的场景下能在很短的时间内快速启动数据库运行。本文研究了该方法的实现过程,结果证明该方法具有备份耗时短、恢复速度快的显著优点,具有十分重要的应用价值。

Backup and recovery is an important technical means to ensure database security.The conventional backup method of ORACLE requires regular full backup,and time-consuming dump operations are required when restoring the database.Incremental update based backup and recovery is an advanced backup and recovery technology of ORACLE database,adhering to the concept of only performing the first full backup of the database and always performing incremental backup afterwards.Compared with conventional backup and recovery methods,there is no need for regular full backup,only regular backup is required,which can significantly shorten the backup time and reduce the impact of the backup process on database performance.It can also quickly start the database operation in a very short time in scenarios where the database needs to be restored urgently due to serious failures.This article investigates the implementation process of this method,and the results prove that it has significant advantages such as short backup time and fast recovery speed,and has significant application value.