I am new to FHIR and its implementation. I have been playing around with HAPI FHIR (Java Implementation) and used hapi-server-example project to use it with MySQL database. I found a script online which created a testing database and I was able to successfully create patient, resource, organization etc and getting back the data from database.
I have an existing database with real patient data. It does not follow the schema of the testing database. I am unable to find any tutorial or information on how to connect FHIR with my existing database with real patient database. Can someone here please guide on how to do that. I have spent more than a week searching for information related to this topic and it has been in vain.