Oracle資料庫查詢表空間使用情況及建立表空間
--查詢表空間使用狀況
select total.tablespace_name,
round(total.MB, 2) as Total_MB,
round(total.MB - free.MB, 2) as Used_MB,
round((1 - free.MB / total.MB) * 100, 2) || '%' as Used_Pct
from (select tablespace_name, sum(bytes) / 1024 / 1024 as MB
from dba_free_space
group by tablespace_name) free,
(select tablespace_name, sum(bytes) / 1024 / 1024 as MB
from dba_data_files
group by tablespace_name) total
where free.tablespace_name = total.tablespace_name;
--建立表空間
示例一：
CREATE TABLESPACE TS_HIS3BZ
DATAFILE 'D:\APP\ADMINISTRATOR\ORADATA\ORCL\HIS401.ORA' SIZE 100M AUTOEXTEND ON NEXT 16M MAXSIZE 10G,
'D:\APP\ADMINISTRATOR\ORADATA\ORCL\HIS402.ORA' SIZE 100M AUTOEXTEND ON NEXT 16M MAXSIZE 20G LOGGING EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO ;
示例二：
CREATE TABLESPACE TS_EMR
DATAFILE 'G:\Oracle\data\EMR01.ORA' SIZE 100M AUTOEXTEND ON NEXT 16M MAXSIZE 20G,
'G:\Oracle\data\EASYHRIP02.ORA' SIZE 100M AUTOEXTEND ON NEXT 16M MAXSIZE 20G,
'G:\Oracle\data\EASYHRIP03.ORA' SIZE 100M AUTOEXTEND ON NEXT 16M MAXSIZE 20G LOGGING EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO
示例三：
CREATE TABLESPACE TS_EMR
DATAFILE 'G:\Oracle\data\EMR01.ORA' SIZE 100M AUTOEXTEND ON NEXT 512M MAXSIZE 10G LOGGING EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO ;