select tablespace_name,

       file_id,

       file_name,

       round(bytes / (1024 * 1024), 0) total_space

  from sys.dba_data_files

 order by tablespace_name;

select name from v$datafile where ts# in (select ts# from v$tablespace where name='USERS');

SELECT UPPER(F.TABLESPACE_NAME) "表空间名",

D.TOT_GROOTTE_MB "表空间大小(M)",

D.TOT_GROOTTE_MB - F.TOTAL_BYTES "已使用空间(M)",

TO_CHAR(ROUND((D.TOT_GROOTTE_MB - F.TOTAL_BYTES) / D.TOT_GROOTTE_MB * 100,2),'990.99') || '%' "使用比",

F.TOTAL_BYTES "空闲空间(M)",

F.MAX_BYTES "最大块(M)"

FROM (SELECT TABLESPACE_NAME,

ROUND(SUM(BYTES) / (1024 * 1024), 2) TOTAL_BYTES,

ROUND(MAX(BYTES) / (1024 * 1024), 2) MAX_BYTES

FROM SYS.DBA_FREE_SPACE

GROUP BY TABLESPACE_NAME) F,

(SELECT DD.TABLESPACE_NAME,

ROUND(SUM(DD.BYTES) / (1024 * 1024), 2) TOT_GROOTTE_MB

FROM SYS.DBA_DATA_FILES DD

GROUP BY DD.TABLESPACE_NAME) D

WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME

ORDER BY 1;

select b.tablespace_name "表空间",b.bytes/1024/1024 "大小M", (b.bytes-sum(nvl(a.bytes,0)))/1024/1024 "已使用M", substr((b.bytes-sum(nvl(a.bytes,0)))/(b.bytes)*100,1,5) "利用率" from dba_free_space a,dba_data_files b where a.file_id=b.file_id and b.tablespace_name='USERS' group by b.tablespace_name,b.file_name,b.bytes order by b.tablespace_name;

select username,default_tablespace,t.* from dba_users t

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;

select group_number,name,total_mb,free_mb from v$asm_diskgroup;

表空间最大为：32GB

alter database datafile '表空间位置' resize 新的尺寸

操作：

指定的路径由表空间位置所在

alter tablespace USERS add datafile '/u01/odata/db/ausers13.dbf' size 30G autoextend on;

例：

+DATA/icdc/datafile/data.268.902365317

扩展空间

alter database datafile '+DATA' size 20G；