oracle表空间查询维护命令大全之三(临时表空间)史上最全

--UNDO表空间汇总
--查看所有的表空间名字
SELECT NAME FROM V$TABLESPACE;
--创建新的UNDO表空间，并设置自动扩展参数;
　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状态下某些时刻只能用一个UNDO表空间，如果要用新建的表空间，必须切换到该表空间:
ALTER SYSTEM SET UNDO_TABLESPACE = UNDO2;
--修改为自动管理
ALTER SYSTEM SET UNDO_MANAGEMENT = AUTO SCOPE = SPFILE;

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

--等待原UNDO表空间所有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, 临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;
查看默认临时表空间
  SELECT *
    FROM DATABASE_PROPERTIES
   WHERE PROPERTY_NAME = ‘DEFAULT_TEMP_TABLESPACE‘;
--建立临时表空间

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;

--修改临时表空间的大小
ALTER DATABASE TEMPFILE ‘/U2/ORADATA/SPRING/TEMP_DATA.DBF‘ RESIZE 1024M;

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

--修改数据库的默认临时表空间
ALTER DATABASE DEFAULT TEMPORARY TABLESPACE TEMP1;

--删除临时表空间
DROP TABLESPACE TEMP INCLUDING CONTENTS AND DATAFILES;

--清理临时表空间
ALTER TABLESPACE TEMP SHRINK SPACE KEEP 20M;
--自动将表空间的临时文件缩小到最小可能的大小
ALTER TABLESPACE TEMP SHRINK TEMPFILE ’ / U02 / ORACLE / DATA / LMTEMP02.DBF’;

2, 临时表空间过大，重新临时表空间的具体步骤汇总：

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

2.改变缺省临时表空间为刚刚创建的新临时表空间TEMP1 ALTER DATABASE DEFAULT TEMPORARY TABLESPACE TEMP1;
验证用户的临时表空间为TEMP1

  SELECT USERNAME, TEMPORARY_TABLESPACE FROM DBA_USERS;

3.删除原临时表空间 DROP TABLESPACE TEMP INCLUDING CONTENTS AND DATAFILES;

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

5.重置缺省临时表空间为新建的TEMP表空间 ALTER DATABASE DEFAULT TEMPORARY TABLESPACE TEMP;
验证用户的临时表空间为TEMP

  SELECT USERNAME, TEMPORARY_TABLESPACE FROM DBA_USERS;

3、查看谁在用临时表空间
  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、查看临时表空间TEMP空闲情况
  SELECT TABLESPACE_NAME,
         FILE_ID,
         BYTES_USED / 1024 / 1024,
         BYTES_FREE / 1024 / 1024
    FROM V$TEMP_SPACE_HEADER;

5, 具体到某个SID临时表空间使用情况
  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参数. 可以通过查看视图DATABASE_PROPERTIES可以看到相应的信息.
            
             SELECT A.PROPERTY_NAME, A.PROPERTY_VALUE
               FROM DATABASE_PROPERTIES A
              WHERE A.PROPERTY_NAME LIKE ‘%DEFAULT%‘;


6, /*查看临时表空间总体使用情况*/
  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, /*查看临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;