Well if you are comparing non-standard database features you are out of luck. Im talking about the 95% CRUD stuff that you do. Basic selects/joins/aggregations

Well if you are comparing non-standard database features you are out of luck. Im talking about the 95% CRUD stuff that you do. Basic selects/joins/aggregations etc. Its super rare i see the need to actually change the underlying database from say postgres to mysql. And in this scenario you are still screwed if you did use a ORM, with database X only features. My point was basic SQL knowledge transfers between databases for the bread and butter 95% of things you need to do.