See if you are a DBA, let’s say in Oracle you need courses and certifications, you must must be accurate, work at nights and weekends, participate to migrations and upgrades. It is very resposnible and well paid work.
Web dev needs more, in terms of languages and platforms but you can work from home, a mistake has smaller cost, it is a common work with less money, but you do not have the haevy resposibility and more.
