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2015年5月6日 星期三

Oracle Flashback Technology

這次不小心把資料庫異動錯,幸好使用此feature將資料就回來,所以將此feature介紹如下

http://docs.oracle.com/cd/B28359_01/appdev.111/b28424/adfns_flashback.htm#BJFDJCJD
這次用到其中

Flashback Query

以下有講如何config,如何使用
http://oracle-base.com/articles/9i/flashback-query.php

需要有

Automatic Undo Management

才能使用Flashback Query
以下講如何 config Automatic Undo Management
http://oracle-base.com/articles/9i/automatic-undo-management.php

 其中使用SQL:
SELECT oea01,oeaud02 FROM oea_file
  AS OF TIMESTAMP
   TO_TIMESTAMP('2015-05-07 12:00:00', 'YYYY-MM-DD HH:MI:SS')
 where oea01 like 'ASO7-1504%';
叫出當時未異動前的資料

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