-1、查看表在那个表空间 select tablespace_name,table_name from user_talbes where table_name='test'; --2、获取用户的默认表空间 select username, DEFAULT_TABLESPACE from dba_users where username='MXH'; --3、查看表空间所有的文件 select * from dba_data_files where tablespace_name='USERS'; --4、查看表空间使用情况: SELECT tbs 表空间名, sum(totalM) 总共大小M, sum(usedM) 已使用空间M, sum(remainedM) 剩余空间M, sum(usedM)/sum(totalM)*100 已使用百分比, sum(remainedM)/sum(totalM)*100 剩余百分比 FROM( SELECT b.file_id ID, b.tablespace_name tbs, b.file_name name, b.bytes/1024/1024 totalM, (b.bytes-sum(nvl(a.bytes,0)))/1024/1024 usedM, sum(nvl(a.bytes,0)/1024/1024) remainedM, sum(nvl(a.bytes,0)/(b.bytes)*100), (100 - (sum(nvl(a.bytes,0))/(b.bytes)*100)) FROM dba_free_space a,dba_data_files b WHERE a.file_id = b.file_id GROUP BY b.tablespace_name,b.file_name,b.file_id,b.bytes ORDER BY b.tablespace_name ) GROUP BY tbs --5、扩展表空间 alterdatabase datafile 'D:\ORACLE\PRODUCT\ORADATA\TEST\USERS01.DBF' resize 50m; --自动增长 alterdatabase datafile 'D:\ORACLE\PRODUCT\ORADATA\TEST\USERS01.DBF' autoextend onnext 50m maxsize 500m; --增加数据文件 alter tablespace USERS add datafile 'd:\users02.dbf' size 5m;
来源:https://www.cnblogs.com/yangzw478/archive/2012/11/07/2758901.html