第一步：查看表空间的名字及文件所在位置：
select tablespace_name,file_id,file_name,round(bytes/(1024*1024),0) total_space from dba_data_files order by tablespace_name
select tablespace_name,file_id,file_name,round(bytes/(1024*1024),0) total_space from dba_data_files order by tablespace_name
第二步：增大所需表空间大小：
alter database datafile '表空间位置'resize 新的尺寸
alter database datafile '表空间位置'resize 新的尺寸
例如：
alter database datafile '\oracle\oradata\anita_2008.dbf' resize 4000m
例如：
alter tablespace ESPS_2008 add datafile '\oracle\oradata\anita_2010.dbf' size 1000m
例如：
alter database datafile '\oracle\oradata\anita_2008.dbf' autoextend on next 100m maxsize 10000m
alter database datafile '\oracle\oradata\anita_2008.dbf' autoextend on next 100m maxsize 10000m
select a.tablespace_name,a.bytes/1024/1024 "sum MB",(a.bytes-b.bytes)/1024/1024 "used MB",b.bytes/1024/1024 "free MB",
round (((a.bytes-b.bytes)/a.bytes)*100,2) "used%" from
(select tablespace_name,sum(bytes) bytes from dba_data_files group by tablespace_name) a,
(select tablespace_name,sum(bytes) bytes,max (bytes) largest from dba_free_space group by tablespace_name)b where a.tablespace_name=b.tablespace_name order by ((a.bytes-b.bytes)/a.bytes) desc;
