oracle數據庫監控方案

發布時間：2023-09-30 21:08:48 作者：網友整理

一、概述

監控Oracle數據庫的數據增長是數據庫管理員（DBA）和數據管理團隊必須進行的重要任務之一。通過監控數據增長，可以確保數據庫的運行順暢、性能高效，并能夠及時采取必要的措施來處理數據增長引起的問題。

監控數據文件的增長是非常重要的，因為數據文件是存儲數據庫中所有數據的主要組成部分。DBA可以通過跟蹤數據文件的大小和增長速度來了解數據增長的趨勢，并根據需要調整數據庫的存儲配置。

二、解決方案

2.1 監控數據庫的增長

SET LINESIZE 200
SET PAGESIZE 200
COL "Database Size" FORMAT a13
COL "Used Space" FORMAT a11
COL "Used in %" FORMAT a11
COL "Free in %" FORMAT a11
COL "Database Name" FORMAT a13
COL "Free Space" FORMAT a12
COL "Growth DAY" FORMAT a11
COL "Growth WEEK" FORMAT a12
COL "Growth DAY in %" FORMAT a16
COL "Growth WEEK in %" FORMAT a16
SELECT
(select min(creation_time) from v$datafile) "Create Time",
(select name from v$database) "Database Name",
ROUND((SUM(USED.BYTES) / 1024 / 1024 ),2) || ' MB' "Database Size",
ROUND((SUM(USED.BYTES) / 1024 / 1024 ) - ROUND(FREE.P / 1024 / 1024 ),2) || ' MB' "Used Space",
ROUND(((SUM(USED.BYTES) / 1024 / 1024 ) - (FREE.P / 1024 / 1024 )) / ROUND(SUM(USED.BYTES) / 1024 / 1024 ,2)*100,2) || '% MB' "Used in %",
ROUND((FREE.P / 1024 / 1024 ),2) || ' MB' "Free Space",
ROUND(((SUM(USED.BYTES) / 1024 / 1024 ) - ((SUM(USED.BYTES) / 1024 / 1024 ) - ROUND(FREE.P / 1024 / 1024 )))/ROUND(SUM(USED.BYTES) / 1024 / 1024,2 )*100,2) || '% MB' "Free in %",
ROUND(((SUM(USED.BYTES) / 1024 / 1024 ) - (FREE.P / 1024 / 1024 ))/(select sysdate-min(creation_time) from v$datafile),2) || ' MB' "Growth DAY",
ROUND(((SUM(USED.BYTES) / 1024 / 1024 ) - (FREE.P / 1024 / 1024 ))/(select sysdate-min(creation_time) from v$datafile)/ROUND((SUM(USED.BYTES) / 1024 / 1024 ),2)*100,3) || '% MB' "Growth DAY in %",
ROUND(((SUM(USED.BYTES) / 1024 / 1024 ) - (FREE.P / 1024 / 1024 ))/(select sysdate-min(creation_time) from v$datafile)*7,2) || ' MB' "Growth WEEK",
ROUND((((SUM(USED.BYTES) / 1024 / 1024 ) - (FREE.P / 1024 / 1024 ))/(select sysdate-min(creation_time) from v$datafile)/ROUND((SUM(USED.BYTES) / 1024 / 1024 ),2)*100)*7,3) || '% MB' "Growth WEEK in %"
FROM    (SELECT BYTES FROM V$DATAFILE
UNION ALL
SELECT BYTES FROM V$TEMPFILE
UNION ALL
SELECT BYTES FROM V$LOG) USED,
(SELECT SUM(BYTES) AS P FROM DBA_FREE_SPACE) FREE
GROUP BY FREE.P;

2.2 監控數據庫每月的增長情況

select to_char(creation_time, 'MM-RRRR') "Month", sum(bytes)/1024/1024/1024 "Growth in GB"
from sys.v_$datafile
where to_char(creation_time,'RRRR')='2014'
group by to_char(creation_time, 'MM-RRRR')
order by  to_char(creation_time, 'MM-RRRR');

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標簽：oracle