MOS Docs to Review for EBS DB Upgrade to 11gR2 (Latest Patch Release)

If you are considering Oracle database upgrade from 9i/10g to 11gR2 or applying release patches (11.2.0.1 to 11.2.0.3 or 11.2.0.4), several issues can be avoided by applying the recommended patches and PSU.  And if you are not on the latest 11gR2 release (11.2.0.3 or 11.2.0.4), I strongly recommend getting there, with the latest PSU possible… The following are must-review reference documents for upgrading Oracle database to 11gR2, that supports EBS 11i or R12.1.

  • Interoperability Notes EBS 12.0 and 12.1 with Database 11gR2 (Doc ID 1058763.1)
  • Interoperability Notes Oracle EBS 11i with Oracle Database 11gR2 (11.2.0) (Doc ID 881505.1)
  • Oracle Recommended Patches — Oracle Database (Doc ID 756671.1)
  • Database Patch Set Update Overlay Patches Required for Use with PSUs and Oracle E-Business Suite (Doc ID 1147107.1)
  • Oracle E-Business Suite Recommended Performance Patches (Doc ID 244040.1)

Make sure the initialization parameters are setup correctly. You may unset the AQ_TM_PROCESS parameter (alter system reset aq_tm_processes scope=spfile sid=’*’;).

  • Database Initialization Parameters for Oracle E-Business Suite Release 12 (Doc ID 396009.1)
  • Database Initialization Parameters for Oracle Applications Release 11i (Doc ID 216205.1)
  • bde_chk_cbo.sql – EBS initialization parameters – Healthcheck (Doc ID 174605.1)

Running this script before and after upgrade provides a good comparison.

  • Script to Collect DB Upgrade/Migrate Diagnostic Information (dbupgdiag.sql) (Doc ID 556610.1)

It is better to truncate the SYS.AUD$ table with large amount or rows, when upgrading from 10g to 11g. Also, remember to purge recycle bin before upgrade.

  • How to Pre-Process SYS.AUD$ Records Pre-Upgrade From 10.1 or later to 11gR1 or later. (Doc ID 1329590.1)

After upgrade, you might want to proactively take care of these as well…

  • 11i – 12 Gather Schema Statistics fails with Ora-20001 errors after 11G database Upgrade (Doc ID 781813.1)
  • EXECUTE DBMS_STATS.UPGRADE_STAT_TABLE(‘APPLSYS’,’FND_STATTAB’);

Apply the EBS patch to utilize the new 11gR2 statistics gathering features in EBS jobs

  • Best Practices for Gathering Statistics with Oracle E-Business Suite (Doc ID 1586374.1)

Good luck with the database upgrade (or patch release apply)!

 

 

 

 

 

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