20 years ago I ported an app from Microsoft SQL server to Oracle as a new requirement from the incoming CTO equivalent. I was told the whole place was standard

20 years ago I ported an app from Microsoft SQL server to Oracle as a new requirement from the incoming CTO equivalent. I was told the whole place was standardizing on Oracle as they had in house expertise. Turns out they didn’t and while the port was completed and successful they had no end of trouble managing it. I’ve since ported a few apps in early development or production between Microsoft SQL server, MySQL and Postgres (in various directions) but nothing in prod in over 10 years