ORA-38760: This database instance failed to turn on flashbac

发布时间：2020-12-15 18:06:45 所属栏目：百科来源：网络整理

导读：SQL startup mount;ORACLE instance started.Total System Global Area 422670336 bytesFixed Size 1336960 bytesVariable Size 356518272 bytesDatabase Buffers 58720256 bytesRedo Buffers 6094848 bytesDatabase mounted.SQL alter database open 2 /alt

SQL> startup mount;
ORACLE instance started.

Total System Global Area  422670336 bytes
Fixed Size                  1336960 bytes
Variable Size             356518272 bytes
Database Buffers           58720256 bytes
Redo Buffers                6094848 bytes
Database mounted.
SQL> alter database open
  2  /
alter database open
*
ERROR at line 1:
ORA-38760: This database instance failed to turn on flashback database
-----------------------------------------------------------------------------------------
【原因】：
    flashback文件丢失，导致无法使用flashback。
【解决方法】：

关闭flashback
SQL> alter database flashback off;

开启数据库
SQL> alter database open;

SQL> select flashback_on from v$database;

FLASHBACK_ON
------------------
NO

重新开启flashback
SQL> alter database flashback on;

Database altered.

SQL> select flashback_on from v$database;

FLASHBACK_ON
------------------
YES

（编辑：李大同）

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