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I upgraded the EBS from 12.2.1 to 12.2.4 and now i want to upgrade to database 18.104.22.168 but i can't find any document here to check the prerequisites ? or should i follow the database upgrade process "normal procedure" ?
Pl see https://blogs.oracle.com/stevenChan/entry/database_12_1_0_2
Please check this
Interoperability Notes Oracle EBS 12.2 with Oracle Database 12c Release 1 (Doc ID 1926201.1)