Oracle表空间管理

create tablespace yyy
datafile '/u01/oracle/oradata/orcl/yyy01.dbf'
size 50m
autoextend on
next 50m maxsize unlimited
extent management local

create user yyy identified by yyy
default tablespace yyy
temporary tablespace temp
profile DEFAULT

-- Grant/Revoke object privileges
grant select on SYS.V_$SESSION to yyy;
grant select on SYS.V_$SESSTAT to yyy;
grant select on SYS.V_$STATNAME to yyy;
-- Grant/Revoke role privileges
grant connect to yyy;
grant resource to yyy;
-- Grant/Revoke system privileges
grant create view to yyy;
grant debug connect session to yyy;
grant unlimited tablespace to yyy;

SELECT t.tablespace_name, round(SUM(bytes / (1024 * 1024)), 0) ts_size
FROM dba_tablespaces t, dba_data_files d
WHERE t.tablespace_name = d.tablespace_name
GROUP BY t.tablespace_name;

SELECT tablespace_name,
file_id,
file_name,
round(bytes / (1024 * 1024), 0) total_space
FROM dba_data_files
ORDER BY tablespace_name;

SELECT a.tablespace_name,
a.bytes/1024/1024 "total/m",
b.bytes/1024/1024 "used/m",
c.bytes/1024/1024 "free/m",
Round((c.bytes * 100)/a.bytes,2) " FREE %"
FROM sys.sm$ts_avail a, sys.sm$ts_used b, sys.sm$ts_free c
WHERE a.tablespace_name = b.tablespace_name
AND a.tablespace_name = c.tablespace_name;

alter database datafile '数据文件路径' resize 大小;

DROP TABLESPACE tablesapce_name including contents and datafiles cascade constraint;