Oracle 如何扩展表空间
Oracle扩展表空间命令,表空间尽量让free百分比保持在10%以上,如果低于10%就增加datafile或者resizedatafile,一般数据文件不要
第一步:查看Oracle表空间的使用情况:
第二步:找到需要扩展空间的表空间,查看其数据文件路径:
select * from dba_data_files t where t.tablespace_name = '表空间名称'
第三步:增加表空间大小:
增加表空间大小的方法有二:
1、修改数据文件的大小:
alter database datafile '全路径的数据文件名称' resize ***M
2、新增数据文件:
alter tablespace 表空间名称
add datafile '全路径的数据文件名称' size ***M
That's all .
注意:1、表空间尽量让free百分比保持在10%以上,如果低于10%就增加datafile或者resizedatafile,一般数据文件不要超过2G
2、 设置表空间数据文件自动扩展:
alter database datafile '全路径的数据文件名称' autoextend on;

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