PostgreSQL Library: postgresql-42.1.4.jar Note - the above driver is the one certified with Java 1.8. Previous Java versions require a different library. Consult the Postgres documentation for details. Value for iscobol.jdbc.driver: org.postgresql.Driver Value for iscobol.jdbc.url: jdbc:postgresql://<ServerName>:<Port>/<DatabaseName>?user=<UserName>&password=<Password>