Oracle rman中restore和recover的区别
Oracle rman中recover和restore的区别:restore just copy the physical file, recover will consistent the database.restore 是
Oracle rman中recover和restore的区别:
restore just copy the physical file, recover will consistent the database.
restore 是还原,文件级的恢复。就是物理文件还原。
recover 是恢复,数据级的恢复。逻辑上恢复,比如应用归档日志、重做日志,全部同步,保持一致。
用我自己的土话讲就是,,用restore先把备份文件拷贝到数据库目录下进行替换,再用recover经过一些处理,数据库就恢复正常了。
1、restore 命令:用于还原已经备份的数据文件。
(1)、restore database 还原所有的数据文件。
(2)、restore tablespace 还原特定表空间的数据文件。
(3)、restore datafile 还原特定的数据文件。
(4)、restore controlfile 还原控制文件。
(5)、restore archivelog 还原归档日志文件。
2、recover 命令:当数据库需要应用归档日志文件恢复数据文件时,使用recover命令。使用该命令数据库系统会自动应用归档的日志文件。
(1)、recover database 恢复所有的数据文件。
(2)、recover tablespace 恢复特定表空间的数据文件。
(3)、recover datafile 恢复特定的数据文件。

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