{"id":112,"date":"2007-01-25T12:22:00","date_gmt":"2007-01-25T16:22:00","guid":{"rendered":"http:\/\/onlineappsdba.com\/?p=112"},"modified":"2009-05-09T05:36:02","modified_gmt":"2009-05-09T09:36:02","slug":"oracle-r12-upgrade-from-11i-database-versions","status":"publish","type":"post","link":"https:\/\/onlineappsdba.com\/index.php\/2007\/01\/25\/oracle-r12-upgrade-from-11i-database-versions\/","title":{"rendered":"Oracle R12 Upgrade from 11i and Database Versions"},"content":{"rendered":"

As promised in past , here is some information on R12 Upgrade process. This Upgrade<\/span> post revolves around Database version with Oracle Applications (E-Business Suite)<\/p>\n

Key points<\/span> to note in Oracle Apps R12 upgrade from 11i<\/strong>
\n— R 12 upgrade process involve replacing 11i Tech stack (9iAS<\/span> & 806) to Fusion Middleware<\/span> (10g Application Server)
\n— Basic upgrade process involves Rapid Install & Autopatch<\/span>
\n— Rapid Install involves installing new R12 tech stack as mentioned in first point
\n— Auto patch process involves upgrading E-Business Suite database compatible to R12 (Data Model)
\n— Final upgrade<\/span> process is of updating data model using enhanced version of AutoPatch<\/span>
\n— Minimum version from which you can upgrade to R12 is 11.5.7 and higher
\n— Minimum database version from which you can upgrade<\/span> to R12 is 9i
\nso if your database is still 8i or <>
\n— Database must be 10.2.0.2 before or during upgrade process & prior to running AutoPatch<\/span> which will upgrade datamodel<\/span> to R12 <\/span>As per Oracle R12 Upgrade Documentation, Apps 11i Instance is classified in Two Categories based on Apps & DB Version
\n<\/font>Category 1<\/strong> – 11.5.7, 11.5.8, 11.5.9 (CU1), 11.5.10 (CU1)
\nCategory 2<\/strong> – 11.5.9 (CU2), 11.5.10 (CU2) or 11.5.10.2<\/span>For Category 1 , database should be upgraded<\/span> during R12 upgrade process (Downtime for R12 upgrade process will be more as this involve database upgrade as well) but for Category 2 Database can be upgraded before R12 upgrade<\/span> .<\/font><\/span><\/span><\/span><\/span>Why can’t I upgrade database to 10.2.0.2 before for category 1 ?
\n<\/strong>This is because there is no Interoperability<\/span> patch for above release & 10.2.0.2 was supported for 11.5.9 (CU2) & 11.5.10(CU2) only . (Wish I could be on 11.5.10.2 \ud83d\ude09 )<\/span>What are advantages of Upgrading database to 10.2.0.2 before R12 upgrade ?<\/strong>Downtime can be broken down to two small downtimes<\/span> (one for Database upgrade<\/span> another one for R12 upgrade<\/span>) and can be achieved during weekends or long weekends (depending on your system & resources)<\/span>Various upgrade<\/span> paths (mainly 3) revolves around application version & database version (mainly on database version).<\/span>Path A for apps R12 Upgrade<\/span> : <\/strong>
\nThese are for instances where database is not 10.2 & DB is upgraded<\/span> during R12 Upgrade<\/span> <\/strong>
\n<\/span>Install the R12 Technology Stack and 10.2.0.2 Oracle home
\nUpgrade the Database to 10.2.0.2
\nPerform Database Steps
\nComplete the R12 upgrade<\/span>Path B for apps R12 Upgrade<\/span> : <\/strong>
\nThese are for instances 11.5.9.2 & 11.5.10.2 and database is 10.2<\/span><\/strong>
\nInstall the R12 Technology Stack and 10.2.0.2 Oracle home
\nPerform Database Steps
\nComplete the R12 upgrade<\/span>Path C for apps R12 Upgrade<\/span> :
\n<\/strong>These are for instances 11.5.9.2 & 11.5.10.2 and database is NOT 10.2, Here upgrade<\/span> database first to 10.2.<\/strong><\/span>
\nUpgrade<\/span> database to 10.2.0.2<\/span><\/span>
\nUse 11i with 10.2.0.2 DB & then in next downtime window<\/span>
\n<\/span>Perform Database Steps
\nComplete the R12 upgrade<\/p>\n

Related :<\/strong>
\nFor full Steps follow metalink Note # 403339.1 Oracle 10gR<\/span>2 Database<\/strong> Preparation Guidelines for an E-Business Suite Release 12 Upgrade
\n<\/strong><\/p>\n

<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

As promised in past , here is some information on R12 Upgrade process. 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