移动Oracle表空间数据文件方案
方案一:移动常规表空间(非系统表空间)数据文件 /**************数据库服务器某个磁盘空间不足时移动常规表空间数据文件********
方案一:移动常规表空间(非系统表空间)数据文件
/**************数据库服务器某个磁盘空间不足时移动常规表空间数据文件*****************/
1、使用范围:该操作在数据库正常运行(open状态)的条件下进行,但不能移动系统表空间里面的数据文件
2、步骤(windows系统下的操作):
1>准备工作:
C:\ sqlplus/nolog
SQL>connect sys/qazwsxedc@实例名 as sysdba;
2>使表空间脱机:
SQL>alter tablespace TABS offline normal;
3>将表空间数据文件复制到比较空闲的磁盘:
例如:将D:\YAG_DB\ABS.ora 复制到E:\NEW\ABS.ora
4>执行alter tablespace rename datafile命令:
SQL>alter tablespace ABS rename datafile 'D:\YAG_DB\ABS.ora ' to 'E:\NEW\ABS.ora';
执行完,,会显示表空间已经更改(此命令的实际是修改控制文件中表空间数据文件的指针)
5>使表空间联机:
SQL>alter tablespace ABS online;
6>此时可删除D:\YAG_DB\ABS.ora
7>重启数据库:
SQL>shutdown immediate
SQL>startup
方案二:移动常系统表空间数据文件
/****************数据库服务器某个磁盘空间不足时移动系统表空间数据文件*****************/
1、使用范围:该操作在数据库处于mount 状态才能进行,可移动系统表空间的数据文件
2、步骤(Linux系统中的操作):
1># su - Oracle --切换到oracle用户下
2># sqlplus /nolog
3>SQL>conn sys/pwd as sysdba
4>SQL>shutdown immediate --数据库在启动状态时,先关闭
5>SQL>startup mount --将数据库启动为mount状态
6>将要移动的系统表空间数据文件复制到比较空闲的分区目录
eg:# mv /home/app/oracle/oradata/ORACLE_SID/system01.dbf /data/YAG_DB/ORACLE_SID
7>使用alter database rename file 命令
SQL>alter database rename file '/home/app/oracle/oradata/ORACLE_SID/system01.dbf' to '/data/YAG_DB/ORACLE_SID/system01.dbf';
8>打开数据库
SQL>alter databse open
9>检查系统表空间的文件路径是否正确
SQL>select file#,name,status From v$datafile; --system系统表空间的文件路径name应为刚刚更改的路径
Linux-6-64下安装Oracle 12C笔记
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解读 Oracle 12C 的 12 个新特性
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