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ORA-31102: Already locked in exclusive mode. Cannot add lock. ORACLE 报错故障修复远程处理

2023-11-05 02:23

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文档解释

ORA-31102: Already locked in exclusive mode. Cannot add lock.

Cause: The resource is already locked in exclusive mode. Cannot add another lock.

Action: Unlock the existing lock.

ORA-31102: Already locked in exclusive mode 错误

错误说明

ORA-31102错误由Oracle数据库返回，当数据库被某个会话锁定在独占模式时出现。当另一个会话请求调用新锁时，就会出现此错误。此错误是一个让你知道，您的数据库已经被某个会话锁定的警告。

常见案例

当你运行一个SELECT语句时，INSERT，UPDATE或DELETE在另一个会话中运行时，通常会遇到此错误。具体来说，当两个或多个会话都要求更新同一区域时，此错误可能发生。

解决方法

1.你可以尝试将事务回滚，以释放其他会话中发生的某些类型的锁。

2.考虑在应用程序层面将资源进行锁定，以防止其他会话在运行其他事务时被锁定。

3.可以检查会话状态，以查看可能锁定资源的会话的名字，以便更容易杀死特定的会话，从而释放锁定。

4.你可以保持会话开放时间尽可能短，以降低此错误发生的机会。考虑定期检查所有连接，并关闭超时的会话以确保数据库资源的有效利用。

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