empire-db-examples/empire-db-example-spring-boot/src/main/resources/application.yml

spring:
  profiles:
    active: hsqldb
  datasource:
    url: 'jdbc:hsqldb:file:hsqldb/sample;shutdown=true'
    username: 'sa'
    password: ''

empiredb:
  driverClass: 'org.apache.empire.db.hsql.DBDatabaseDriverHSql'

---

spring:
  config:
    activate:
      on-profile: mysql

empiredb:
  driverClass: 'org.apache.empire.db.mysql.DBDatabaseDriverMySQL'
  driverProperties:
    databaseName: 'DBSAMPLE'

---

spring:
  config:
    activate:
      on-profile: postgresql

---

spring:
  config:
    activate:
      on-profile: h2

---

spring:
  config:
    activate:
      on-profile: derby

---

spring:
  config:
    activate:
      on-profile: oracle

---

spring:
  config:
    activate:
      on-profile: sqlserver