Installation Guide Upgrading E-Business Suite from 12.1.3 to 12.2.9 4 Upgrading E-Business Suite from 12.1.3 to 12.2.9 This section includes the following topics: Upgrade E-Business Suite from 12.1.3 to 12.2.9 Apply the Database Patches Apply the Additional EBS Patches Revert Database Init Parameters and Grant Access to APPS