ORA-01093: ALTER DATABASE CLOSE only permitted with no sessions connected

标签：ora-1093   dg主备切换   

10.2.0.3环境下的DG主备切换演练，关闭应用且重启主库之后，主库查询切换状态：

SQL> select switchover_status from v$database;

SWITCHOVER_STATUS
--------------------
SESSIONS ACTIVE

执行以下命令尝试切换

SQL> ALTER DATABASE COMMIT TO SWITCHOVER TO PHYSICAL STANDBY;

报错如下：

ORA-01093: ALTER DATABASE CLOSE only permitted with no sessions connected

解决：

通过查MOS发现，是由于10g版本的DG会racgimon进程监控实例状态，因为可以从v$session.program看到许多racgimon进程.

SQL> alter database commit to switchover to PHYSICAL STANDBY WITH SESSION SHUTDOWN;

切换成功。

ORA-01093: ALTER DATABASE CLOSE only permitted with no sessions connected

标签：ora-1093   dg主备切换   

原文地址：http://blog.csdn.net/robo23/article/details/43234197