Hi @satya,
Glad it helped. We do have connectors for traditional databases that helps performing CRUD operations using APIs. They are called Volos Connectors. Find more about same here and here.
Unfortunately, I don’t think we have volos connector for oracle. But, Apigee Edge supports node containers, You can leverage oracle node plugin to extract and expose as an API. If interested, You can write volos connector for oracle & share with open source Apigee Community.