Open the database and reset the logs - alter database open resetlogs.

打开数据库并重新设置日志——alter database open resetlogs。

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Open the database and reset the logs - alter database open resetlogs (Note after opening using resetlogs will create online log files).

打开数据库并重新设置日志——alter databaseopenresetlogs(注意，使用resetlogs打开后将创建联机日志文件)。

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Since the redo log group is inactive and is archived, just clear the redo log - alter database clear logfile group N (where N is the group # of the lost redo log)

由于重做日志组是不活动和归档的，所以只需清除重做日志即可 ——alter databaseclear logfilegroupN（其中 N 是丢失的重做日志的组 #）。

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SQL> alter database open resetlogs;

打开数据库。

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SQL> alter database open read only;

在只读模式下打开备用数据库。

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The ALTER DATABASE command is used to add storage paths.

使用ALTER DATABASE命令来添加存储路径。

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Thus, to modify an existing database named TEST_DB so that it USES automatic storage, you would execute an ALTER database command that looks like this.

这样，要修改一个名为test_db的现有数据库，使其使用自动存储，则可以执行如下所示的ALTER DATABASE命令。

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You are advised to issue the ALTER DATABASE partition GROUP statement to customize the tablespace setting and to control the container layout in the new partition.

建议发出ALTER DATABASEPARTITIONgroup语句来定制表空间设置，并控制新分区中的容器布局。

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You are advised to issue the ALTER DATABASE partition GROUP statement to customize the tablespace setting and to control the container layout in the new partition.

建议发出ALTER DATABASEPARTITIONgroup语句来定制表空间设置，并控制新分区中的容器布局。

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