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ORA-38875: FLASHBACK DATABASE not started; in test mode ORACLE 报错 故障修复 远程处理

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ORA-38875: FLASHBACK DATABASE not started; in test mode ORACLE 报错 故障修复 远程处理

文档解释

ORA-38875: FLASHBACK DATABASE not started; in test mode

Cause: The FLASHBACK DATABASE command was not performed because it was started in test mode.

Action: No action required.

ORA-38875 是Oracle数据库中回滚查询(flashback query)的一个错误代码,指定回滚查询未以正常开启方式运行,可能是正常状态中未开,或是以测试(test)模式开启。

官方解释

ORA-38875: FLASHBACK DATABASE not started; either enabled or in test mode.

常见案例

1. 启用Flashback Query实例化失败,但Flashback Database已经以测试方式启用。

2. 尝试执行回滚查询,但Flashback Database未正常启用。

一般处理方法及步骤

1. 确认当前数据库实例是否已启用Flashback Query,及查看Flashback Database状态,可使用以下SQL语法进行查询:

SELECT flashback_on, flashback_database_status FROM v$database;

2. 如Flashback Database未正常启用,即可以下SQL语法正常启用:

ALTER DATABASE FLASHBACK ON;

3. 如未知当前数据库是否已启用Flashback Query,也可运行下SQL语句启用Flashback Query:

ALTER DATABASE FLASHBACK ON;

ALTER DATABASE FLASHBACK ARCHIVE FLASHBACK_NAME CREATE;

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ORA-38875: FLASHBACK DATABASE not started; in test mode ORACLE 报错 故障修复 远程处理

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