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Don Burleson Blog 







Scheduled purge of recycle bin tips

Oracle Database Tips by Donald BurlesonFebruary 19, 2015

Question:  How do I schedule a periodic purge of the items in my recycle bin?  I want to automatically remove all recycle bin tables that were dropped more then 30 days old.

Answer:  You must always be careful when emptying the recycle bin, and many DBA's will manually inspect all recycle bin entries before purging the recycle bin.  For more details on purging from the recycle bin, see my important notes on recycle bin management.

Scheduled purging of the recycle bin tables

Note that for autoextend tablespaces, objects are purged from the recycle bin to reclaim space before any datafiles are extended.  The following script will identify all tables that were dropped within the past 30 days, and this script can be used to purge all tables in the recycle bin that are over 30 days old.  This script can be scheduled to run daily via dbms_scheduler or via a crontab.

This script is for dropped tables. but it can be modified for other schema objects.

spool runme.sql

--   owner,
--   original_name,
   'purge table "' || owner || '"."' || object_name || '";'
   can_purge = 'YES'
   type = 'TABLE'
   to_date(droptime, 'YYYY-MM-DD:HH24:MI:SS') < sysdate - 30
order by 1, 2;

-- Inspect the runme.sql output

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