The comments on this subthread are a bit out of touch in a very coastal-tech way -- yes, Oracle is a monster, yes, their tech is garbage, yes, their products are awful.

But Oracle owns Cerner Health (now Oracle Health, but to most users it is still Cerner), i.e. 25% market share of the EHR space, and PeopleSoft, which you are painfully familiar with if you work for a bigcorp or anywhere in the public sector in North America. Their database product is very far from their only LOB.