oracle 查询 归档日志最大值和平均值
select max(ss.size_GB), avg(ss.size_GB)
from (select s.*, rownum rn2
from (select a.*
from (select t1.*, rownum rn
from (SELECT TRUNC(FIRST_TIME) time,
SUM(BLOCK_SIZE * BLOCKS) / 1024 / 1024 / 1024 size_GB
FROM V$ARCHIVED_LOG
GROUP BY TRUNC(FIRST_TIME)
order by time desc) t1) a
where a.rn > 1
order by a.time asc) s) ss
where ss.rn2 > 1;
----查询ASM使用率
select group_number,name,total_mb/1024 TGB,free_mb/1024 FGB,USABLE_FILE_MB/1024 from v$asm_diskgroup;
---RAC 查询单节点日归档大小
select to_char(b.FIRST_TIME, 'yyyy-mm-dd') arch_date,
round(sum(b.BLOCKS * b.BLOCK_SIZE / 1024 / 1024/1024), 2) "ARCH_SIZE(GB)"
from v$archived_log b
where b.CREATOR = 'ARCH'
and b.STANDBY_DEST = 'NO'
and b.archived = 'YES'
and b.dest_id = 1
and b.FIRST_TIME >= sysdate - 15
and b.FIRST_TIME < trunc(sysdate)
group by to_char(FIRST_TIME, 'yyyy-mm-dd')
order by 1;
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