linux清理表空间v,清理 SYSAUX 表空间

「爱情、让人受尽委屈。」 2021-09-07 18:26 565阅读 0赞

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’);

19c19c64fb7349f6449ae3a8c30efd9c.png

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;

d53f284977acbc736937ad566fc35905.png

3、查看表空间段使用情况

select * from (

select segment_name,segment_type,bytes / 1024 / 1024

from dba_segments

where tablespace_name = ‘SYSAUX’

and bytes / 1024 / 1024 >100

order by bytes desc);

84991162a78387247b7ad819c42a99b3.png

4、生成删除段内容语句

select distinct ‘truncate table ‘||segment_name||’;’,s.bytes/1024/1024

from dba_segments s

where s.segment_name like ‘WRH$%’

and segment_type in (‘TABLE PARTITION’, ‘TABLE’)

and s.bytes/1024/1024>100

order by s.bytes/1024/1024/1024 desc;

e54a272b29aa9a9caabf9fd66d45a115.png

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

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