ORA-12350: database link being dropped is still mounted

文档解释

ORA-12350: database link being dropped is still mounted

Cause: An attempt was made to drop a ROM: database link that was still mounted and/or opened.

Action: Close and dismount the database and then re-issue the drop statement.

ORA-12350错误是当应用程序尝试删除一个数据库链接时，另一个未关联的数据库会出现的错误。

官方解释

错误12350: 尝试删除已挂载的数据库链接

常见案例

ORA-12350会通常发生在当数据库链接已被挂载未被关闭的情况下。如果想要释放资源，你必须先关闭连接。

正常处理方法及步骤

1.使用激活功能检查数据库链接活动状态:

select * from v$session where program like '%db_link%’;

2. 对于激活的数据库链接，执行断开连接命令

alter system disconnect session ‘,’ immediate;

3. 验证链接是否已断开连接：

select * from v$session where program like ‘%db_link%’;

4. 如果确实断开连接了，可以继续执行删除数据库链接的命令：

drop database link ;