1、查看sysaux空间使用率

SELECT FROM (

SELECT D.TABLESPACE_NAME,

SPACE || 'M' "SUM_SPACE(M)",

BLOCKS "SUM_BLOCKS",

SPACE - NVL (FREE_SPACE, 0) || 'M' "USED_SPACE(M)",

ROUND ( (1 - NVL (FREE_SPACE, 0) / SPACE) 100, 2) || '%' "USED_RATE(%)", FREE_SPACE || 'M' "FREE_SPACE(M)" FROM ( SELECT TABLESPACE_NAME, ROUND (SUM (BYTES) / (1024 1024), 2) SPACE,

SUM (BLOCKS) BLOCKS

FROM DBA_DATA_FILES

GROUP BY TABLESPACE_NAME) D,

( SELECT TABLESPACE_NAME,

ROUND (SUM (BYTES) / (1024 1024), 2) FREE_SPACE FROM DBA_FREE_SPACE GROUP BY TABLESPACE_NAME) F WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME(+) UNION ALL SELECT D.TABLESPACE_NAME, SPACE || 'M' "SUM_SPACE(M)", BLOCKS SUM_BLOCKS, USED_SPACE || 'M' "USED_SPACE(M)", ROUND (NVL (USED_SPACE, 0) / SPACE 100, 2) || '%' "USED_RATE(%)",

NVL (FREE_SPACE, 0) || 'M' "FREE_SPACE(M)"

FROM ( SELECT TABLESPACE_NAME,

ROUND (SUM (BYTES) / (1024 1024), 2) SPACE, SUM (BLOCKS) BLOCKS FROM DBA_TEMP_FILES GROUP BY TABLESPACE_NAME) D, ( SELECT TABLESPACE_NAME, ROUND (SUM (BYTES_USED) / (1024 1024), 2) USED_SPACE,

ROUND (SUM (BYTES_FREE) / (1024 1024), 2) FREE_SPACE FROM V$TEMP_SPACE_HEADER GROUP BY TABLESPACE_NAME) F WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME(+) ORDER BY 1) WHERE TABLESPACE_NAME IN ('SYSAUX','SYSTEM','UNDOTBS1','TEMP');

2、查看sysaux_occupants情况

SELECT occupant_name "Item", space_usage_kbytes / 1048576 "Space Used (GB)", schema_name "Schema", move_procedure "Move Procedure" FROM v$sysaux_occupants ORDER BY 1;

3、查看表空间段使用情况

select * from (select segment_name,segment_type,bytes / 1024 / 1024from dba_segmentswhere tablespace_name = 'SYSAUX'and bytes / 1024 / 1024 >100order by bytes desc);

4、生成删除段内容语句

select distinct 'truncate table '||segment_name||';',s.bytes/1024/1024from dba_segments swhere s.segment_name like 'WRH$%'and segment_type in ('TABLE PARTITION', 'TABLE')and s.bytes/1024/1024>100order by s.bytes/1024/1024/1024 desc;

5、删除记录

truncate table WRH$_ACTIVE_SESSION_HISTORY;truncate table WRH$_EVENT_HISTOGRAM;truncate table WRH$_LATCH;truncate table WRH$_SQLSTAT;truncate table WRH$_SYSSTAT;truncate table WRH$_PARAMETER;truncate table WRH$_SQL_PLAN;truncate table WRH$_LATCH_MISSES_SUMMARY;truncate table WRH$_SEG_STAT;truncate table WRH$_SYSTEM_EVENT;

6、重新查看表空间使用率

参考博文：