ORA-38750: FLASHBACK DATABASE may not be performed using a dispatcher.
Cause: An attempt was made to use a dispatcher process for FLASHBACK DATABASE. Memory requirements disallow this recovery method.
Action: Connect to the instance via a dedicated server process to perform FLASHBACK DATABASE.
ORA-38750是Oracle数据库错误,指的是无法通过dispatcher执行FLASHBACK DATABASE操作。
1、禁用dispatcher:ALTER SYSTEM DISABLE DISPATCHER;
2、使用RMAN备份恢复:
(1)备份数据库:RMAN> BACKUP DATABASE;
(2)恢复数据库:RMAN> RESTORE DATABASE;
3、使用Enterprise Manager管理恢复:
(1)登陆Enterprise Manager
(2)选择恢复模式
(3)选择当前时间,执行恢复操作:恢复到某一时间点,使用Flashback Database功能
(4)完成恢复操作,检查实例是否正常运行