Answers for "HOW TO ENABLE h2 DB"

h2 database spring boot

spring.datasource.url=jdbc:h2:mem:testdb
spring.datasource.driverClassName=org.h2.Driver
spring.datasource.username=sa
spring.datasource.password=password
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect

connecting to h2 database from java

Connection conn = DriverManager.getConnection ("jdbc:h2:~/test", "sa","");