查询表空间

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 4 DESC;

 ALTER TABLESPACE 表空间名 ADD DATAFILE
‘E:\DATABASE\xxx\xxx.ora‘ SIZE 50M
AUTOEXTEND  ON NEXT 5M maxsize unlimited ;

select tablespace_name, file_id, file_name,round(bytes/(1024*1024),0) total_space from dba_data_files order by tablespace_name

ALTER TABLESPACE "EMR"
ADD
DATAFILE ‘E:\app\Administrator\product\11.2.0\dbhome_1\database\FEMR1.DAT‘ SIZE 5M REUSE
AUTOEXTEND
ON NEXT 10M MAXSIZE 4000M;

ALTER TABLESPACE 表空间名 ADD DATAFILE
‘E:\DATABASE\xxx\xxx.ora‘ SIZE 50M
AUTOEXTEND  ON NEXT 5M maxsize unlimited ;

查询表空间

原文：https://www.cnblogs.com/maweiwei/p/10359283.html