2026-03-12 20:23:15

timhall/monitoring/redo_by_hour.sql

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+-- -----------------------------------------------------------------------------------
+-- File Name    : https://oracle-base.com/dba/monitoring/redo_by_hour.sql
+-- Author       : Tim Hall
+-- Description  : Lists the volume of archived redo by hour for the specified day.
+-- Call Syntax  : @redo_by_hour (day 0=Today, 1=Yesterday etc.)
+-- Requirements : Access to the v$views.
+-- Last Modified: 11/10/2013
+-- -----------------------------------------------------------------------------------
+
+SET VERIFY OFF PAGESIZE 30
+
+WITH hours AS (
+  SELECT TRUNC(SYSDATE) - &1 + ((level-1)/24) AS hours
+  FROM   dual
+  CONNECT BY level < = 24
+)
+SELECT h.hours AS date_hour,
+       ROUND(SUM(blocks * block_size)/1024/1024/1024,2) size_gb
+FROM   hours h
+       LEFT OUTER JOIN v$archived_log al ON h.hours = TRUNC(al.first_time, 'HH24')
+GROUP BY h.hours
+ORDER BY h.hours;
+
+SET VERIFY ON PAGESIZE 14