Once mounted, the database can receive archived redo data from the primary database.
一旦数据库装载后,数据库就能从主库接收归档重做日志。
When a physical standby database is open, redo data from the primary database is received by the standby database, but the log files are not applied.
当物理备库是打开时,来自主库的重做数据被备库接收,但是不会被应用。
Redo logs - Files that contain the before and after images of changed data.
重做日志——包含更改数据的前后映像的文件。
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