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AWRから指定した期間のload profileをcsv形式で取得する方法

Last updated at Posted at 2016-04-08

AWRのload profileをcsv形式で出力するためのスクリプト例です。

get_load_profile.sql

set termout off
set pagesize 0
set linesize 10000
set trimspool on
set heading off

spool load_profile.log
prompt begin_snapid,yyyy,mm,dd,hh,end_snapid,instance_num,name,value

select                                         '"' ||
    bsn.SNAP_ID                           || '","' ||
    to_char(bsn.END_INTERVAL_TIME,'yyyy') || '","' ||
    to_char(bsn.END_INTERVAL_TIME,'mm')   || '","' ||
    to_char(bsn.END_INTERVAL_TIME,'dd')   || '","' ||
    to_char(bsn.END_INTERVAL_TIME,'hh24') || '","' ||
    esn.SNAP_ID                           || '","' ||
    bsn.INSTANCE_NUMBER                   || '","' ||
    bsy.STAT_NAME                         || '","' ||
    (esy.VALUE - bsy.VALUE)               || '"'
from
    DBA_HIST_SNAPSHOT bsn,
    DBA_HIST_SNAPSHOT esn,
    DBA_HIST_SYSSTAT  bsy,
    DBA_HIST_SYSSTAT  esy
where 
        bsn.DBID = esn.DBID
    and bsn.INSTANCE_NUMBER = esn.INSTANCE_NUMBER
    and bsn.END_INTERVAL_TIME = esn.BEGIN_INTERVAL_TIME
    and bsn.STARTUP_TIME = esn.STARTUP_TIME
    and bsn.DBID = bsy.DBID
    and bsn.INSTANCE_NUMBER = bsy.INSTANCE_NUMBER
    and bsn.SNAP_ID = bsy.SNAP_ID
    and esn.DBID = esy.DBID
    and esn.INSTANCE_NUMBER = esy.INSTANCE_NUMBER
    and esn.SNAP_ID = esy.SNAP_ID
    and bsy.STAT_NAME = esy.STAT_NAME
    and bsy.STAT_NAME in ('execute count','parse count (hard)','consistent gets',
                          'physical reads','redo size')
    and bsn.END_INTERVAL_TIME >= to_date('2016/04/05 09:50','yyyy/mm/dd hh24:mi')
    and esn.END_INTERVAL_TIME <= to_date('2016/04/08 13:10','yyyy/mm/dd hh24:mi')
order by bsn.SNAP_ID;
spool off
/

出力されたデータをexcelに取り込み、
ピボットグラフを活用することで容易に可視化できます。

カラムをカンマで分割
excel.png

ピボットグラフを選択
pivot.png

軸、列を指定し整形
graph.png

グラフ化することで複数期間にわたる傾向分析が容易にできます。
(SQLはDB12.1.0.2にて試行)

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