2026-03-12 20:23:15

timhall/monitoring/redo_by_min.sql

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+-- -----------------------------------------------------------------------------------
+-- File Name    : https://oracle-base.com/dba/monitoring/redo_by_min.sql
+-- Author       : Tim Hall
+-- Description  : Lists the volume of archived redo by min for the specified number of hours.
+-- Call Syntax  : @redo_by_min (N number of minutes from now)
+-- Requirements : Access to the v$views.
+-- Last Modified: 11/10/2013
+-- -----------------------------------------------------------------------------------
+
+SET VERIFY OFF PAGESIZE 100
+
+WITH mins AS (
+  SELECT TRUNC(SYSDATE, 'MI') - (&1/(24*60)) + ((level-1)/(24*60)) AS mins
+  FROM   dual
+  CONNECT BY level <= &1
+)
+SELECT m.mins AS date_min,
+       ROUND(SUM(blocks * block_size)/1024/1024,2) size_mb
+FROM   mins m
+       LEFT OUTER JOIN v$archived_log al ON m.mins = TRUNC(al.first_time, 'MI')
+GROUP BY m.mins
+ORDER BY m.mins;
+
+SET VERIFY ON PAGESIZE 14