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;