In my experience (a 25+ year Oracle database geek), MySQL error messages confuse me more and Oracle's are better. But Oracle also has some error messages where

In my experience (a 25+ year Oracle database geek), MySQL error messages confuse me more and Oracle's are better. But Oracle also has some error messages where you have to know how parsers (and semantic/typecheckers) work, in order to understand why the message was worded like that. But Oracle usually does point out the exact character/token in the SQL statement where the error originated from.