Scnhealthcheck.sql script

Installing, Executing and Interpreting output from the "scnhealthcheck.sql" script (Doc ID 1393363.1) mentions growing and checking scn.

Patch:13498243 has this script, and the script is displayed below.

RemRem $Header: rdbms/admin/scnhealthcheck.sql apfwkr_blr_backport_13498243_12.1.0.2.0/1 2015/05/26 22:44:51 apfwkr Exp $RemRem scnhealthcheck.sqlRemRem Copyright (c) 2012, 2015, Oracle and/or its affiliates. Rem All rights reserved.RemRem NAMERem scnhealthcheck.sql - Scn Health checkRemRem DESCRIPTIONRem Checks scn health of a DBRemRem NOTESRem .RemRem MODIFIED (MM/DD/YY)Rem tbhukya 01/11/12 - CreatedRemRemdefine LOWTHRESHOLD=10define MIDTHRESHOLD=62define VERBOSE=FALSEset veri off;set feedback off;set serverout onDECLARE verbose boolean:=&&VERBOSE;BEGIN For C in ( select version, date_time, dbms_flashback.get_system_change_number current_scn, indicator from ( select version, to_char(SYSDATE,'YYYY/MM/DD HH24:MI:SS') DATE_TIME, (((( ((to_number(to_char(sysdate,'YYYY'))-1988)*12*31*24*60*60) + ((to_number(to_char(sysdate,'MM'))-1)*31*24*60*60) + (((to_number(to_char(sysdate,'DD'))-1))*24*60*60) + (to_number(to_char(sysdate,'HH24'))*60*60) + (to_number(to_char(sysdate,'MI'))*60) + (to_number(to_char(sysdate,'SS'))) ) * (16*1024)) - dbms_flashback.get_system_change_number) / (16*1024*60*60*24) ) indicator from v$instance ) ) LOOP dbms_output.put_line( '-----------------------------------------------------' || '---------' ); dbms_output.put_line( 'ScnHealthCheck' ); dbms_output.put_line( '-----------------------------------------------------' || '---------' ); dbms_output.put_line( 'Current Date: '||C.date_time ); dbms_output.put_line( 'Current SCN: '||C.current_scn ); if (verbose) then dbms_output.put_line( 'SCN Headroom: '||round(C.indicator,2) ); end if; dbms_output.put_line( 'Version: '||C.version ); dbms_output.put_line( '-----------------------------------------------------' || '---------' ); IF C.version > '10.2.0.5.0' and C.version NOT LIKE '9.2%' THEN IF C.indicator>&MIDTHRESHOLD THEN dbms_output.put_line('Result: A - SCN Headroom is good'); dbms_output.put_line('Apply the latest recommended patches'); dbms_output.put_line('based on your maintenance schedule'); IF (C.version < '11.2.0.2') THEN dbms_output.put_line('AND set _external_scn_rejection_threshold_hours=' || '24 after apply. '); END IF; ELSIF C.indicator