Configure Multiple Data Sources || Multiple Transaction Management

https://stackoverflow.com/questions/30337582/spring-boot-configure-and-use-two-datasources

https://springframework.guru/how-to-configure-multiple-data-sources-in-a-spring-boot-application/


Multiple Transaction Management:

https://stackoverflow.com/questions/48954763/spring-transactional-with-a-transaction-across-multiple-data-sources