Enabling Fast Incremental Backup

最新推荐文章于 2025-12-04 15:25:15 发布

最新推荐文章于 2025-12-04 15:25:15 发布 · 162 阅读

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#数据库

本文介绍如何在Oracle数据库中启用块变更追踪功能，并提供相应的SQL命令。文中解释了块变更追踪文件的最小尺寸要求及默认创建位置。此外还介绍了如何通过SQL命令重命名此文件，并强调了RMAN不支持该文件的备份与恢复。

Enabling Fast Incremental Backup

The minimum size for the block change tracking file is 10 MB,

启用块更改追踪：
ALTER DATABASE{ENABLE|DISABLE} BLOCK CHANGE TRACKING
[USING FILE '...']；-----》可以不用

note：You do not need to set the block change tracking file

destination if the DB_CREATE_FILE_DEST initialization parameter is

set because the file is created as an Oracle Managed File (OMF)

file in the DB_CREATE_FILE_DEST location.

You can rename the block change tracking file by using the ALTER
DATABASE RENAMEcommand.
Your database must be in the MOUNT state to rename the tracking

file.

comman：ALTER DATABASE RENAME FILE '...' TO '...';

！！RMAN does not support backup and recovery ofthe block change

tracking file. For this reason, you should not place it in the Fast

Recovery Area.