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2026-03-12 20:23:15

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2026-03-12 21:23:47 +01:00
parent eab4b36eca
commit 93039b8489
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29
vg/sp_buffer_hit_ratio_trend.sql Normal file
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set echo off
set term off
store set backupenv replace
set term on
set verify off
column bhr format 999.99
column mydate heading 'YYYY-MM-DD HH:MI'
set pages 10000
select
to_char(snap_time,'yyyy-mm-dd HH24:MI') mydate,
new.name buffer_pool_name,
(((new.consistent_gets-old.consistent_gets)+(new.db_block_gets-old.db_block_gets))-(new.physical_reads-old.physical_reads)) /
((new.consistent_gets-old.consistent_gets)+(new.db_block_gets-old.db_block_gets))*100 bhr
from perfstat.stats$buffer_pool_statistics old,
perfstat.stats$buffer_pool_statistics new,
perfstat.stats$snapshot sn
where snap_time > sysdate - &&1
and new.name=old.name
and new.snap_id=sn.snap_id
and old.snap_id=sn.snap_id-1
order by 1 asc
/
set echo off
set term off
start backupenv
set term on