Use import.sql instead of data.sql if you'll be generating the schema with Hibernate

Spring Boot will execute data.sql before Hibernate is able to generate the schema. During production, it's expected to have the schema already, but during dev, this might not be the case, so better to use Hibernate's import.sql file, since that is only executed after Hibernate is able to generate the schema.

Use data.sql only if you'll be generating the schema from a schema.sql or via Liquibase and not via Hibernate.