download eclispe,
go to help>marketplace> and download the springboot extension,
open the project,
right click> run as> and go to run configrations,
and under it select the project and then click search on "main type" then select what appears,
click on run,
go to your web browser and type http://localhost:8080,
to access the database type http://localhost:8080/h2-console,
Type "jdbc:h2:mem:medrecord" in jdbc url then click connect,
you can the use sql queries like select* from patient to see the content,