oracle10g切换到flashback状态

首先要设定DB_RECOVERY_FILE_DEST和db_recovery_file_dest_size；然后再设置。

1、alter system set DB_RECOVERY_FILE_DEST='/u99f';

2、alter system set db_recovery_file_dest_size=2G；

3、shutdown immediate；

4、startup mount

5、chown -R oracle:oinstall /u99f

6、alter database flashback on;

7、SQL> select flashback_on from v$database;

FLASHBACK_ON

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YES

1 row selected.