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scnhealthcheck.sql脚本-创新互联
Installing, Executing and Interpreting output from the "scnhealthcheck.sql" script (文档 ID 1393363.1)中提到对scn的增长与检查。
Patch:13498243 中有此脚本，下面把脚本放出来了。
Rem Rem $Header: rdbms/admin/scnhealthcheck.sql apfwkr_blr_backport_13498243_12.1.0.2.0/1 2015/05/26 22:44:51 apfwkr Exp $ Rem Rem scnhealthcheck.sql Rem Rem Copyright (c) 2012, 2015, Oracle and/or its affiliates. Rem All rights reserved. Rem Rem NAME Rem scnhealthcheck.sql - Scn Health check Rem Rem DESCRIPTION Rem Checks scn health of a DB Rem Rem NOTES Rem . Rem Rem MODIFIED (MM/DD/YY) Rem tbhukya 01/11/12 - Created Rem Rem define LOWTHRESHOLD=10 define MIDTHRESHOLD=62 define VERBOSE=FALSE set veri off; set feedback off; set serverout on DECLARE 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<=&LOWTHRESHOLD THEN dbms_output.put_line('Result: C - SCN Headroom is low'); dbms_output.put_line('If you have not already done so apply' ); dbms_output.put_line('the latest recommended patches right now' ); IF (C.version < '11.2.0.2') THEN dbms_output.put_line('set _external_scn_rejection_threshold_hours=24 ' || 'after apply'); END IF; dbms_output.put_line('AND contact Oracle support immediately.' ); ELSE dbms_output.put_line('Result: B - SCN Headroom is low'); dbms_output.put_line('If you have not already done so apply' ); dbms_output.put_line('the latest recommended patches right now'); IF (C.version < '11.2.0.2') THEN dbms_output.put_line('AND set _external_scn_rejection_threshold_hours=' ||'24 after apply.'); END IF; END IF; ELSE IF C.indicator<=&MIDTHRESHOLD THEN dbms_output.put_line('Result: C - SCN Headroom is low'); dbms_output.put_line('If you have not already done so apply' ); dbms_output.put_line('the latest recommended patches right now' ); IF (C.version >= '10.1.0.5.0' and C.version <= '10.2.0.5.0' and C.version NOT LIKE '9.2%') THEN dbms_output.put_line(', set _external_scn_rejection_threshold_hours=24' || ' after apply'); END IF; dbms_output.put_line('AND contact Oracle support immediately.' ); ELSE 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 >= '10.1.0.5.0' and C.version <= '10.2.0.5.0' and C.version NOT LIKE '9.2%') THEN dbms_output.put_line('AND set _external_scn_rejection_threshold_hours=24' || ' after apply.'); END IF; END IF; END IF; dbms_output.put_line( 'For further information review MOS document id 1393363.1'); dbms_output.put_line( '-----------------------------------------------------' || '---------' ); END LOOP; end; /另外有需要云服务器可以了解下创新互联cdcxhl.cn，海内外云服务器15元起步，三天无理由+7*72小时售后在线，公司持有idc许可证，提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案，具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势，专为企业上云打造定制，能够满足用户丰富、多元化的应用场景需求。
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