oracle表空间查询维护命令大全之三(暂时表空间)史上最全

--UNDO表空间汇总

--查看全部的表空间名字

SELECT NAME FROM V$TABLESPACE;

--创建新的UNDO表空间，并设置自己主动扩展參数;

　CREATE UNDO TABLESPACE UNDOTBS2 DATAFILE 'D:\ORACLE\PRODUCT\10.1.0\ORADATA\ORCL\UNDOTBS02.DBF' SIZE 10M REUSE AUTOEXTEND ON NEXT 100M MAXSIZE UNLIMITED;

--注意：在OPEN状态下某些时刻仅仅能用一个UNDO表空间。假设要用新建的表空间，必须切换到该表空间:

ALTER SYSTEM SET UNDO_TABLESPACE = UNDO2;

--改动为自己主动管理

ALTER SYSTEM SET UNDO_MANAGEMENT = AUTO SCOPE = SPFILE;

改动UNDO的表空间管理方式为MANUAL ALTER SYSTEM SET UNDO_MANAGEMENT = MANUAL SCOPE = SPFILE;

--改动

--等待原UNDO表空间全部UNDO SEGMENT OFFLINE;

SELECT USN,

XACTS,

STATUS,

RSSIZE / 1024 / 1024 / 1024,

HWMSIZE / 1024 / 1024 / 1024,

SHRINKS

FROM V$ROLLSTAT

ORDER BY RSSIZE;

--删除表空间

DROP TABLESPACE UNDO1 INCLUDING CONTENTS AND DATAFILES;

--更改UODO表空间的大小

ALTER DATABASE DATAFILE '/U2/ORADATA/SPRING/UNDOTBS01.DBF' RESIZE 1024M;

SELECT TABLESPACE_NAME, SEGMENT_TYPE, OWNER, SEGMENT_NAME

FROM DBA_EXTENTS

WHERE FILE_ID = 8

AND 565129 BETWEEN BLOCK_ID AND BLOCK_ID + BLOCKS - 1;

1, 暂时表空间的主要作用： 索引CREATE或REBUILD； ORDER BY 或 GROUP BY； DISTINCT 操作； UNION 或 INTERSECT 或 MINUS； SORT - MERGE JOINS； ANALYZE.

SELECT USERNAME, TEMPORARY_TABLESPACE FROM DBA_USERS;

查看默认暂时表空间

SELECT *

FROM DATABASE_PROPERTIES

WHERE PROPERTY_NAME = 'DEFAULT_TEMP_TABLESPACE';

--建立暂时表空间

CREATE TEMPORARY TABLESPACE TEMP_DATA TEMPFILE '/ORACLE/ORADATA/DB/TEMP_DATA.DBF' SIZE 50M

CREATE TEMPORARY TABLESPACE TEMP TEMPFILE '/U02/ORADATA/ORCL/ORCL/TEMP01.DBF' SIZE 6144M, '/U02/ORADATA/ORCL/ORCL/TEMP02.DBF' SIZE 6144M;

--改动暂时表空间的大小

ALTER DATABASE TEMPFILE '/U2/ORADATA/SPRING/TEMP_DATA.DBF' RESIZE 1024M;

CREATE TEMPORARY TABLESPACE TEMP1 TEMPFILE '/U02/ORADATA/ORCL/ORCL/TEMP101.DBF' SIZE 4056M;

--改动数据库的默认暂时表空间

ALTER DATABASE DEFAULT TEMPORARY TABLESPACE TEMP1;

--删除暂时表空间

DROP TABLESPACE TEMP INCLUDING CONTENTS AND DATAFILES;

--清理暂时表空间

ALTER TABLESPACE TEMP SHRINK SPACE KEEP 20M;

--自己主动将表空间的暂时文件缩小到最小可能的大小

ALTER TABLESPACE TEMP SHRINK TEMPFILE ’ / U02 / ORACLE / DATA / LMTEMP02.DBF’;

2, 暂时表空间过大，又一次暂时表空间的详细步骤汇总：

1.创建中转暂时表空间 CREATETEMPORARYTABLESPACETEMP1 TEMPFILE '/ORACLE/ORADATA/SECOOLER/TEMP02.DBF' SIZE 512M REUSE AUTOEXTEND ON NEXT 1M MAXSIZE UNLIMITED;

2.改变缺省暂时表空间为刚刚创建的新暂时表空间TEMP1 ALTER DATABASE DEFAULT TEMPORARY TABLESPACE TEMP1;

验证用户的暂时表空间为TEMP1

SELECT USERNAME, TEMPORARY_TABLESPACE FROM DBA_USERS;

3.删除原暂时表空间 DROP TABLESPACE TEMP INCLUDING CONTENTS AND DATAFILES;

4.重建暂时表空间 CREATE TEMPORARY TABLESPACE TEMP TEMPFILE '/ORACLE/ORADATA/SECOOLER/TEMP01.DBF' SIZE 512M REUSE AUTOEXTEND ON NEXT 1M MAXSIZE UNLIMITED;

5.重置缺省暂时表空间为新建的TEMP表空间 ALTER DATABASE DEFAULT TEMPORARY TABLESPACE TEMP;

验证用户的暂时表空间为TEMP

SELECT USERNAME, TEMPORARY_TABLESPACE FROM DBA_USERS;

3、查看谁在用暂时表空间

SELECT SE.USERNAME,

SE.SID,

　　SE.SERIAL#,

　　SE.SQL_ADDRESS,

　　SE.MACHINE,

　　SE.PROGRAM,

　　SU.TABLESPACE,

　SU.SEGTYPE,

　　SU.CONTENTS 　FROM V$SESSION SE,

　　V$SORT_USAGE SU 　　WHERE SE.SADDR = SU.SESSION_ADDR;

4、查看暂时表空间TEMP空暇情况

SELECT TABLESPACE_NAME,

FILE_ID,

BYTES_USED / 1024 / 1024,

BYTES_FREE / 1024 / 1024

FROM V$TEMP_SPACE_HEADER;

5, 详细到某个SID暂时表空间使用情况

SELECT B.TABLESPACE,

B.SEGFILE#,

B.SEGBLK#,

B.BLOCKS,

B.BLOCKS * 32 / 1024 / 1024,

A.SID,

A.SERIAL#,

A.USERNAME,

A.OSUSER,

A.STATUS,

C.SQL_TEXT,

B.CONTENTS

FROM V$SESSION A, V$SORT_USAGE B, V$SQL C

WHERE A.SADDR = B.SESSION_ADDR

AND A.SQL_ADDRESS = C.ADDRESS(+)

ORDER BY B.BLOCKS DESC

在创建用户时,

有一个默认的表空间的參数. 能够通过查看视图DATABASE_PROPERTIES能够看到对应的信息.

SELECT A.PROPERTY_NAME, A.PROPERTY_VALUE

FROM DATABASE_PROPERTIES A

WHERE A.PROPERTY_NAME LIKE '%DEFAULT%';

6, /*查看暂时表空间整体使用情况*/

SELECT TMP_TBS.TABLESPACE_NAME,

SUM(TMP_TBS.TOTAL_MB) TOTAL_MB,

SUM(USED_TOT.USED_MB) USED_MB,

SUM(USED_TOT.USED_MB) / SUM(TMP_TBS.TOTAL_MB) * 100 USED_PERSENT

FROM (SELECT TABLESPACE_NAME, SUM(BYTES) / 1024 / 1024 TOTAL_MB

FROM DBA_TEMP_FILES

GROUP BY TABLESPACE_NAME) TMP_TBS,

(SELECT TMP_USED.TABLESPACE,

SUM(TMP_USED.BLOCKS * PARA.DB_BLOCK_SIZE) / 1024 / 1024 USED_MB

FROM V$SORT_USAGE TMP_USED,

(SELECT VALUE DB_BLOCK_SIZE

FROM V$PARAMETER

WHERE NAME = 'DB_BLOCK_SIZE') PARA

GROUP BY TMP_USED.TABLESPACE) USED_TOT

WHERE TMP_TBS.TABLESPACE_NAME = USED_TOT.TABLESPACE(+)

GROUP BY TMP_TBS.TABLESPACE_NAME;

7, /*查看暂时表空间中排序段和数据段的使用情况*/

SELECT TMP_TBS.TABLESPACE_NAME,

USED_TOT.SEGTYPE TEMP_SEG_TYPE,

SUM(TMP_TBS.TOTAL_MB) TOTAL_MB,

SUM(USED_TOT.USED_MB) USED_MB,

SUM(USED_TOT.USED_MB) / SUM(TMP_TBS.TOTAL_MB) * 100 USED_PERSENT

FROM (SELECT TABLESPACE_NAME, SUM(BYTES) / 1024 / 1024 TOTAL_MB

FROM DBA_TEMP_FILES

GROUP BY TABLESPACE_NAME) TMP_TBS,

(SELECT TMP_USED.TABLESPACE,

TMP_USED.SEGTYPE,

SUM(TMP_USED.BLOCKS * PARA.DB_BLOCK_SIZE) / 1024 / 1024 USED_MB

FROM V$SORT_USAGE TMP_USED,

(SELECT VALUE DB_BLOCK_SIZE

FROM V$PARAMETER

WHERE NAME = 'DB_BLOCK_SIZE') PARA

GROUP BY TMP_USED.TABLESPACE, TMP_USED.SEGTYPE) USED_TOT

WHERE TMP_TBS.TABLESPACE_NAME = USED_TOT.TABLESPACE(+)

GROUP BY TMP_TBS.TABLESPACE_NAME, USED_TOT.SEGTYPE;