Oracle Archived Redo Volume by Day
Displays the daily volume of archived redo logs for a specified number of days. Useful for monitoring redo generation trends, capacity planning, and backup sizing.
oraclesqlcapacity-planningv1.0.0
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-- -----------------------------------------------------------------------------------
-- File Name : https://oracle-base.com/dba/monitoring/redo_by_day.sql
-- Author : Tim Hall
-- Description : Lists the volume of archived redo by day for the specified number of days.
-- Call Syntax : @redo_by_day (days)
-- Requirements : Access to the v$views.
-- Last Modified: 11/10/2013
-- -----------------------------------------------------------------------------------
SET VERIFY OFF
SELECT TRUNC(first_time) AS day,
ROUND(SUM(blocks * block_size)/1024/1024/1024,2) size_gb
FROM v$archived_log
WHERE TRUNC(first_time) >= TRUNC(SYSDATE) - &1
GROUP BY TRUNC(first_time)
ORDER BY TRUNC(first_time);
SET VERIFY ON