1.查詢表空間使用情況:
sqlplus system/manager@topprod
sql>@q_tbsfree
2.查詢temp使用方法:
sqlplus system/manager@topprod
sql>select
d.tablespace_name tablespace_name
, d.status tablespace_status
, nvl(a.bytes, 0) tablespace_size
, nvl(t.bytes, 0) used
, trunc(nvl(t.bytes / a.bytes * 100, 0)) used_pct
, nvl(s.current_users, 0) current_users
from
sys.dba_tablespaces d
, ( select tablespace_name, sum(bytes) bytes
from dba_temp_files
group by tablespace_name
) a, ( select tablespace_name, sum(bytes_cached) bytes
from v$temp_extent_pool
group by tablespace_name
) t, v$sort_segment s
where
d.tablespace_name = a.tablespace_name(+)
and d.tablespace_name = t.tablespace_name(+)
and d.tablespace_name = s.tablespace_name(+)
and d.extent_management like 'local'
and d.contents like 'temporary';
2.清理temp臨時表空間：(在無使用者連線的狀況下操作,最好在清理之前重啟一下資料庫)
#重啟資料庫
sqlplus '/as sysdba'
sql>shutdown immediate
sql>startup
#建立乙個臨時表空間temp02，用作臨時替換
sql>create temporary tablespace temp02 tempfile '/u2/oradb/oradata/topprod/temp02.dbf' size 10m autoextend on next 10m;
#將系統臨時表空間指向temp02
sql>alter database default temporary tablespace temp02;
#刪除原來的臨時表空間temp
sql>drop tablespace temp including contents and datafiles;
#建立新的臨時表空間temp
sql>create temporary tablespace temp tempfile '/u2/oradb/oradata/topprod/temp01.dbf' size 4096m autoextend on next 100m;
#將系統臨時表空間指回temp
sql>alter database default temporary tablespace temp;
#刪除臨時表空間temp02
sql>drop tablespace temp02 including contents and datafiles;
3.清理undo表空間：(在無使用者連線的狀況下操作,最好在清理之前重啟一下資料庫)
#重啟資料庫
sqlplus '/as sysdba'
sql>shutdown immediate
sql>startup
#建立乙個undo表空間undotbs2，用作臨時替換
sql>create undo tablespace undotbs2 datafile '/u2/oradb/oradata/topprod/undotbs02.dbf' size 10m autoextend on next 10m;
#將系統undo表空間指向undotbs2
sql>alter system set undo_tablespace=undotbs2 scope=both;
#確保所有在undotbs1的undo segment都已offline
sql> select segment_name ,status ,tablespace_name from dba_rollback_segs;
#刪除原來的undo表空間undotbs1
sql>drop tablespace undotbs1 including contents and datafiles;
#建立新的臨時表空間undotbs1
sql>create undo tablespace undotbs1 datafile '/u2/oradb/oradata/topprod/undotbs01.dbf' size 4096m;
#將系統undo表空間指回undotbs1
sql>alter system set undo_tablespace=undotbs1 scope=both;
#刪除undo表空間undotbs2
sql>drop tablespace undotbs2 including contents and datafiles;
3.清理temptabs表空間：
#刪除temptabs表空間
sql>drop tablespace temptabs including contents and datafiles;
#建立temptabs表空間
sql>create tablespace temptabs datafile '/u2/oradb/oradata/topprod/temptabs.dbf' size 4096m autoextend on next 100m;
或者刪除表
select 'drop table '||segment_name ||';' from dba_segments where tablespace_name='temptabs' and segment_name like 'tt%' and segment_name not like '%_file';
4.增加系統表空間：
alter tablespace system add datafile '/u2/oradb/oradata/topprod/system02.dbf' size 2000m autoextend on next 10m;
alter tablespace sysaux add datafile '/u2/oradb/oradata/topprod/sysaux02.dbf' size 2000m autoextend on next 10m;
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