
If you’ve built a custom app on Oracle and not Postgres….
Enterprises don’t need this, the reason to use an Oracle DB is solely for the Oracle applications which are only certified with it, and these are the needs that Oracle milk.
Databases are ten a penny and Oracle, while still having some good stuff, don’t have good enough stuff to make it worth it so the only reason to use it is to tick the “supported configuration” box on a Programme Management spreadsheet- although that’s no guarantee that Oracle won’t change the supported configuration if a bug is found, speaking from experience