昨天笔记本意外进水,强制关机,早上就一直出这问题,数据库打不开,报错,
用 sysdba 登陆后

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SQL> select open_mode from v$database;
OPEN_MODE
----------
MOUNTED

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SQL> alter database open;
提示错误

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alter database clear unarchived logfile group 1;

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select * from v$log;
alter database open;
在查询

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SELECT OPEN_MODE FROM v$database
提示处于 read,write
数据库ok 了