Oracle E-Business Suit Upgrade from R12.2.0 to R12.2.4 Please perform the activity step by steps as mentioned the below: In Our case, EBS R12.2.0 base version is install by startCD version 12.2.0.46, So we have need to apply the below patches sequence according to Doc. ID 1594274.1 Note:- Before starting database upgrade, please confirm the below steps. 1.) Application should be down. 2.) Database should be down. 3.) export PATH=$ORACLE_HOME/OPatch:$PATH 4.) which opatch 5.) Skip all those patch which are already applied check by below command: $ opatch lsinventory DATABASE Patch 12.2.0.47 and 12.2.0.48 & not included in any startCD =============================================================== Section 2.1: Database 11.2.0.3 Patches and Bug Numbers According to Doc.ID 1594274.1 =============================================================== Patch List ---------- 13001379 16924879 16929165 opatch prer