ORA-38760: This database instance failed to turn on flashback database 错误解决过程
问题现象: 一大早起床把数据库打开,本来想做个测试,结果不料弹出ORA-38760: This database instance failed to turn on flashback database的错误,这个错误很显然是由于flashback导致的错误。
错误分析: 首先从错误现象来看,是由于flashback打开了,因为flashback文件丢失而无法使用flashback从而后触发了这个错误。那么正常情况下应该是不会报错的。
alter 日志错误信息如下:
Errors in file c:Oracleproduct10.2.0adminwwldumpwwl_rvwr_5416.trc:
ORA-38701: 闂洖鏁版嵁搴撴棩蹇?7 搴忓垪 43 绾跨▼ 1: "C:ORACLEPRODUCT10.2.0FLASH_BACKWWLFLASHBACKO1_MF_7T7O9TKT_.FLB"
ORA-27041: 鏃犳硶鎵撳紑鏂囦欢
OSD-04002: unable to open file
O/S-Error: (OS 3) 系统找不到指定的路径。
解决办法: 因为删除了flashback文件,在数据库open的时候turn on flashback database失败,故将database flashback属性先置为off将数据库Open,再重新trun on flashback 后数据库即可打开.
过程如下:SQL> startup
ORACLE instance started.Total System Global Area 1610612736 bytes
Fixed Size 2066080 bytes
Variable Size 419432800 bytes
Database Buffers 1174405120 bytes
Redo Buffers 14708736 bytes
Database mounted.
ORA-38760: This database instance failed to turn on flashback database
临时关闭flashbak 启动数据库。SQL> alter database flashback off;
Database altered.
SQL> alter database open;
Database altered.
再次开启flashbak后启动数据库即可。SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.Total System Global Area 1610612736 bytes
Fixed Size 2066080 bytes
Variable Size 419432800 bytes
Database Buffers 1174405120 bytes
Redo Buffers 14708736 bytes
Database mounted.SQL> alter database flashback on;
Database altered.SQL> alter database open;
Database altered.SQL>还可参考Metalink文章:
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