<parent>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-parent</artifactId>
 <version>1.5.2.RELEASE</version>
 <relativePath/>
</parent>
… to dependency:
<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>

public interface DeptRepo extends JpaRepository<Dept, Long> {

@Query(value = "select d from dept d where name = 'ACCOUNTING'")
List<Dept> findByAccounting;
}

spring.jpa.show_sql=true
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.Oracle12cDialect
spring.datasource.url=jdbc:oracle:thin:@localhost:1521/to2b
spring.datasource.username=scott
spring.datasource.password=tiger