• Creates the online redo log files if they do not currently exist.

    联机日志损坏,不能做完整修复时,用的。

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  • Changing the size and number of the online redo log files is sometimes done to tune the database.

    改变在线重做日志文件大小数量有时优化数据库

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  • Redo Logfile Sizing Advisor - This feature recommends the optimal size of redo log files in order to avoid excessive disk I/Os due to frequent checkpointing.

    Redo Logfile SizingAdvisor ——特性推荐日志文件最佳大小从而避免频繁出现的检查点而导致过多磁盘I/O

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  • Whenever you add an online redo log file to the primary database, you should add corresponding online and standby redo log files to the standby database.

    无论何时添加在线日志文件,你应该库添加相应的在线重做日志备用重做日志文件

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  • The maximum protection and maximum availability modes require that standby redo log files are configured on at least one standby database in the configuration.

    最大保护最大可用性模式需要重做日志文件配置配置中的至少一个数据库

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  • At some point, you need to resume redo apply on the standby database, and apply the archived redo log files to resynchronize the standby database with the primary database.

    有点伤,需要上重新应用重做数据,应用归档日志同步库之间的数据。

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  • Checkpoint (CKPt) - Synchronizes the headers of data files and control files with the current redo log and checkpoint Numbers.

    检查点(CKPt)——数据文件控制文件头当前重做日志和检查点数同步。

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  • If Redo Apply is running, you must cancel Redo Apply before you can change the log files.

    如果应用正在运行,必须改变日志文件钱取消重做应用。

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  • Log Writer (LGWr) - Writes entries from log buffer to redo the log files.

    日志读写器(LGWr)——日志缓冲区写入项目以便重做日志文件。

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  • 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.

    物理打开时,来自主库重做数据备库接收但是不会被应用

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  • The on-disk RBA is the point up to which LGWR has flushed the redo thread to the online log files.

    磁碟央行这点刷新LGWR线程在线日志文件

    youdao

  • The on-disk RBA is the point up to which LGWR has flushed the redo thread to the online log files.

    磁碟央行这点刷新LGWR线程在线日志文件

    youdao

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