Oracle - ORA-01652: unable to extend temp segment by 128 in tablespace TEMP

一、原因

    意思是指TEMP表空间无法自动扩展TEMP段。这种问题一般有两种原因：一是临时表空间空间太小，二是不能自动扩展。

二、分析

    查看TEMP表空间的数据文件个数，当前大小，是否自动扩展

SQL>
SELECT
TABLESPACE_NAME, FILE_NAME, BYTES/1024/1024 "CURR_SIZE(MB)", MAXBYTES/1024/1024 "MAX_SIZE(MB)",AUTOEXTENSIBLE
FROM
DBA_TEMP_FILES;

TABLESPACE_NAME           FILE_NAME                                            CURR_SIZE(MB)  MAX_SIZE(MB) AUT
------------------------- ---------------------------------------------------- ------------- ------------- ---
TEMP                      /usr/oracle/oradata/MyOrclDb/temp.257.894453839         32767.9844    32767.9844 YES
TEMP                      /usr/oracle/oradata/MyOrclDb/temp.288.909606971              30720             0 NO
TEMP                      /usr/oracle/oradata/MyOrclDb/temp.289.909606981              30720             0 NO

    查看TEMP临时表空间使用状况，剩余空间的大小

        通过DBA_TEMP_FREE_SPACE表查询

SELECT
TABLESPACE_NAME, TABLESPACE_SIZE/1024/1024 AS "TABLESPACE_SIZE(MB)",
ALLOCATED_SPACE/1024/1024 AS "ALLOCATED_SIZE(MB)", FREE_SPACE/1024/1024 AS "FREE_SIZE(MB)",
round(((TABLESPACE_SIZE - FREE_SPACE)/TABLESPACE_SIZE)*100,2) AS "USED_RATE(%)"
FROM
DBA_TEMP_FREE_SPACE;

TABLESPACE_NAME          TABLESPACE_SIZE(MB) ALLOCATED_SIZE(MB) FREE_SIZE(MB) USED_RATE(%)
------------------------ ------------------- ------------------ ------------- ------------
TEMP                                    5350               5350          4351        18.67

        通过SORT_SEGMENT和V$TEMPFILE查询

SELECT
SEG.TABLESPACE_NAME, TPSF.TOTAL_BYTES/1024/1024 "SPACE_SIZE(MB)",
SUM(SEG.USED_BLOCKS * TPSF.BLOCK_SIZE)/1024/1024 "USED_SIZE(MB)",
(TPSF.TOTAL_BYTES - SUM(SEG.USED_BLOCKS * TPSF.BLOCK_SIZE))/1024/1024 "FREE_SIZE(MB)",
round((SUM(SEG.USED_BLOCKS * TPSF.BLOCK_SIZE)/TPSF.TOTAL_BYTES)*100,2) as "USED_TATE(%)"
FROM
V$SORT_SEGMENT SEG,
(SELECT
TBS.NAME, TPF.BLOCK_SIZE, SUM(TPF.BYTES) AS TOTAL_BYTES
FROM
V$TABLESPACE TBS, V$TEMPFILE TPF
WHERE
TBS.TS# = TPF.TS#
GROUP BY
TBS.NAME, TPF.BLOCK_SIZE
) TPSF
WHERE
SEG.TABLESPACE_NAME = TPSF.NAME
GROUP BY
SEG.TABLESPACE_NAME, TPSF.TOTAL_BYTES;

TABLESPACE_NAME             SPACE_SIZE(MB) USED_SIZE(MB) FREE_SIZE(MB) USED_TATE(%)
--------------------------- -------------- ------------- ------------- ------------
TEMP                                  5350           998          4352        18.65