alter database recover managed standby database cancel; 1. 2. 备库执行闪回命令 SQL> flashback database to timestamp to_timestamp('2019-06-05 09:58','yyyy-MM-dd hh24:mi'); #耐心等待完成 Flashback complete. 1. 2. 3. flashback database的过程中,可以另外开启一个窗口,通过v$session_long...
OceanBase Database allows you to set theundo_retentionparameter for a tenant to perform a flashback query. After you set theundo_retentionparameter, you can use the flashback query feature to obtain data of multiple versions in the time range fromT - undo_retentiontoT. The default value of ...
When you use Flashback Database to rewind a database to a past target time, the command determines which blocks changed after the target time and restores them from the flashback logs. The database restores the version of each block that is immediately before the target time. The database ...
After the data flashback feature is enabled, the point in time for data backup may change or the feature may be disabled due to the following operations: If you change the architecture of an instance, for example, from standard to cluster, or if you migrate the instance to another z...
FLASHBACK TABLE original_name TO BEFORE DROP [RENAME TO database_name.table_name]; Parameters Examples Restore the dropped tabletbl1from the recycle bin. obclient> SHOW RECYCLEBIN; +---+---+---+---+ | OBJECT_NAME | ORIGINAL_NAME | TYPE | CREATETIME | +---+---+---+---...
Flashback Database。 Flashback Drop, Flashback Query(分Flashback Query,Flashback Version Query。 Flashback Transaction Query 三种) 和Flashback Table。 Oracle 11g中闪回新特性 :闪回归档 1 闪回恢复区(Flashback Recovery Area) 在oracle 9i中引入flashback查询,以便能在须要的时候查到过去某个时刻的一致性...
1.1 Flashback Database Flashback Database is accessible through theRMAN command and SQL statementFLASHBACKDATABASE. You can use either command to quickly recover the database fromlogical data corruptions or user errors. Flashback Database is similar to conventional point-in-time recoveryin its effe...
我个人不怎么推荐使用flashback database功能,因为在生产库中,谁能够承受得起整个库的回退(也许特别极端的情况下可能需要使用到),今天帮网友恢复了一个案例:删除表空间,然后尝试着flashback database功能把这个删除的表空间找回来,但是他在整个操作过程中思路比较混乱,最后导致数据库不能正常起来。因为网友有这个方面的...
SQL> select flashback_on from v$database; FLASHBACK_ON --- YES 2.4.2.4.4.查询当前的scn SQL> SELECT CURRENT_SCN FROM V$DATABASE; CURRENT_SCN --- 947921 2.4.2.4.5.查询当前的时间 SQL> select to_char(sysdate,'yy-mm-dd hh24:mi:ss') time from dual; TIME --- 09-10-14 14:37:...
Database (RDB) snapshots. The data flashback feature optimizes append-only file (AOF) persistence to allow AOFs to be incrementally archived. This way, data can be restored to a point in time accurate to the second. This facilitates O&M and allows you to use Tair for persistent storage....