最近研究表空间、临时-,稍微总结一下,以后继续补充:
当“space=用户表空间 ”时报错处置:
--查看表空间的小大;
SQL> SELECT TABLESPACE_NAME,SUM(BYTES)/1024/1024 MB FROM DBA_FREE_SPACE GROUP BY TABLESPACE_NAME;
--查看表空间中据数文件放存的路径:
SQL> SELECT TABLESPACE_NAME, BYTES/1024/1024 FILE_SIZE_MB, FILE_NAME FROM DBA_DATA_FILES;
--错误处置:附加表空间
--alter tablespace TESTSPACE add datafile 'D:\MYSPACE01.DBF' size 20480m
当“space=temp ”时报错处置:
临时表空间相干知识点总结(转载)
临时表空间的作用:
临时表空间主要用途是在据数库行进排序运算[如建创索引、order by及group by、distinct、union/intersect/minus/、sort-merge及join、analyze令命]、理管索引[如建创索引、IMP行进据数导入]、拜访图视等作操时供提临时的运算空间,当运算成完以后系统会主动清算。
当临时表空间缺乏时,表现为运算速度常异的慢,并且临时表空间速迅增长到最大空间(扩展的极限),并且一般不会主动清算了。
如果临时表空间没有置设为主动扩展,则临时表空间不敷时事务行执将会报ora-01652没法扩展临时段的错误,当然解决方法也很简单:1、置设临时据数文件主动扩展,或者2、增大临时表空间。
临时表空间的相干作操:
询查默许临时表空间:
SQL> select * from database_properties where property_name='DEFAULT_TEMP_TABLESPACE';
PROPERTY_NAME
------------------------------
PROPERTY_VALUE
--------------------------------------------------------------------------------
DESCRIPTION
--------------------------------------------------------------------------------
DEFAULT_TEMP_TABLESPACE
TEMP
Name of default temporary tablespace
询查临时表空间态状:
SQL> select tablespace_name,file_name,bytes/1024/1024 file_size,autoextensible from dba_temp_files;
TABLESPACE_NAME
------------------------------
FILE_NAME
--------------------------------------------------------------------------------
FILE_SIZE AUT
---------- ---
TEMP
/opt/oracle/oradata/TEST/temp01.dbf
65 YES
询查临时表空间动态图视:
SQL> select * from v$tempfile;
FILE# CREATION_CHANGE# CREATION_TIM TS# RFILE# STATUS
---------- ---------------- ------------ ---------- ---------- -------
ENABLED BYTES BLOCKS CREATE_BYTES BLOCK_SIZE
---------- ---------- ---------- ------------ ----------
NAME
--------------------------------------------------------------------------------
1 446436 09-DEC-08 3 1 ONLINE
READ WRITE 68157440 8320 20971520 8192
/opt/oracle/oradata/TEST/temp01.dbf
扩展临时表空间:
方法一、增大临时文件小大:
SQL> alter database tempfile '/opt/oracle/oradata/TEST/temp01.dbf' resize 100m;
Database altered.
方法二、将临时据数文件设为主动扩展:
SQL> alter database tempfile '/opt/oracle/oradata/TEST/temp01.dbf' autoextend on next 5m maxsize unlimited;
扩展表空间时报错:
SQL> alter database tempfile '/opt/oracle/oradata/TEST/temp01.dbf' resize 100m;
alter database tempfile '/opt/oracle/oradata/TEST/temp01.dbf' resize 100m
*
ERROR at line 1:
ORA-00376: file 201 cannot be read at this time
ORA-01110: data file 201: '/opt/oracle/oradata/TEST/temp01.dbf'
SQL> alter database tempfile '/opt/oracle/oradata/TEST/temp01.dbf' autoextend on next 5m maxsize unlimited;
alter database tempfile '/opt/oracle/oradata/TEST/temp01.dbf' autoextend on next 5m maxsize unlimited
*
ERROR at line 1:
ORA-00376: file 201 cannot be read at this time
ORA-01110: data file 201: '/opt/oracle/oradata/TEST/temp01.dbf'
原因是临时表空间不知道什么原因offline了,修为改online后修改功成。
SQL> alter database tempfile '/opt/oracle/oradata/TEST/temp01.dbf' online;
Database altered.
文章结束给大家分享下程序员的一些笑话语录: 某程序员对书法十分感兴趣,退休后决定在这方面有所建树。花重金购买了上等的文房四宝。一日突生雅兴,一番磨墨拟纸,并点上了上好的檀香,颇有王羲之风 范,又具颜真卿气势,定神片刻,泼墨挥毫,郑重地写下一行字:hello world.