I can tell you from my past experiences, organisation who started out with Oracle databases and products have a hard time moving away from them to opensource al

I can tell you from my past experiences, organisation who started out with Oracle databases and products have a hard time moving away from them to opensource alternatives. The migration risk and cost of reskilling is very high. There are actual Oracle product experts in organisations who also create resistance towards migration as well as rewriting lot of business logics and procedures is alot of risk. If you start a new company today I'm sure you won't use Oracle database there are better alternatives.