How-to: Grails 3.0.2 + Oracle Database 12c?

Question

I am making my first steps with Grails and try to create a hello world application with an Oracle Database 12c.

Unfortunately the tutorial documentation on the datab

Answer 1

1. download ojdbc7.jar from http://www.oracle.com/technetwork/database/features/jdbc/jdbc-drivers-12c-download-1958347.html

2. create a /lib folder in the main folder of your application (lib folder was removed from Grails 3)

3. copy ojdbc7.jar to lib folder

4. add this line to the /build.gradle file

  dependencies{
       (...)
       runtime fileTree(dir: 'lib', include: '*.jar')
       (...)
  }

5. create lines in the /grails-app/conf/application.yml

 hibernate:
      (...)
      jdbc:
         use_get_generated_keys: true

 dataSource:
    pooled: true
    jmxExport: true
    driverClassName: oracle.jdbc.OracleDriver
    username: DBUSERNAME
    password: dbpassword

 environments:
     development:
         dataSource:
             dbCreate: create
             url: jdbc:oracle:thin:@localhost.net:1521:dbname
     test:
         dataSource:
             dbCreate: update
             url: jdbc:oracle:thin:@localhost.net:1521:dbname
     production:
         dataSource:
             dbCreate: update
             url: jdbc:oracle:thin:@locaLhost.net:1521:dbname