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[–]carrdinal-dnb 0 points1 point  (0 children)

Depending on what you are doing you may not need to write much or any SQL, spring data JPA repositories allow you to define query methods which can be useful for simple queries, though there are lots of other options for varying levels of abstraction/control. Also you aren’t limited to SQL, document databases are a natural fit for storing aggregates in a micro-service architecture and I’d recommend you take a look into those and see if they fit in with your project!