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HomeDatabaseMysql TutorialOracle重新关联数据文件

由于Oracle数据库中的数据增长过快,导致数据文件所在的磁盘空间不足,为了清理空间,我就把oracle关闭,然后直接把数据文件、控

由于Oracle数据库中的数据增长过快,导致数据文件所在的磁盘空间不足,,为了清理空间,我就把oracle关闭,然后直接把数据文件、控制文件、重做日志组移到另一个磁盘,但这造成很多的问题,并且都不好清理,于是就重新移动回去,之后通过查询我才找到移动的方法:

  移动用户创建的表空间时,在数据库打开的情况下:

  1、首先将表空间设置为只读

  alter tablespace bfina read only;

  2、然后将表空间设置为脱机状态

  alter database datafile '/opt/app/oracle/oradata/orcl/bfina.dbf' offline;

  3、然后将数据文件拷贝到一个新的位置

  host cp '/opt/app/oracle/oradata/orcl/bfina.dbf' '/gisdata/orcl/bfina.dbf'

  4、重新命名数据文件到一个新的位置

  alter database rename file '/opt/app/oracle/oradata/orcl/bfina.dbf' to '/gisdata/orcl/bfina.dbf'

  5、然后将数据文件联机

  alter database datafile '/gisdata/orcl/bfina.dbf' online

  6、将表空间设置为读写权限

  alter tablespace bfina read write;

  7、最后删掉旧有的数据文件

  若是要移动系统表空间

  那么的装载系统到MOUNT状态

  startup mount;

  1、将系统表空间脱机

  alter database datafile '/opt/app/oracle/oradata/orcl/system01.dbf' offline;

  2、然后拷贝到新的目录

  host cp '' ''

  3、重新命名系统表空间到新的位置

  alter database rename file '/opt/app/oracle/oradata/orcl/system01.dbf' to '/gisdata/orcl/system01.dbf'

  4、然后联机

  alter database '/opt/app/oracle/oradata/orcl/system01.dbf' online;

  5、之后打开数据库

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