Default login:

driver=org.apache.derby.jdbc.ClientDriver
url=jdbc:derby://localhost:1527/sample
user=dali
password=dali

Default Create Schema--use createschema.bat or:
java -classpath createschema.jar;dalimodel.jar;commons-cli-1.0.jar;toplink-essentials.jar;derbyclient.jar oracle.toplink.jpa.example.inventory.util.CreateSchema

Default Populate Database--use populatedb.bat or:
java -classpath populatedb.jar;dalimodel.jar;commons-cli-1.0.jar;toplink-essentials.jar;derbyclient.jar oracle.toplink.jpa.example.inventory.util.PopulateDatabase

How to use database other than Derby or override user id/password/jdbc driver/connect url

java -classpath createschema.jar;dalimodel.jar;commons-cli-1.0.jar;toplink-essentials.jar;ojdbc14.jar oracle.toplink.jpa.example.inventory.util.PopulateDatabase -user scott -password tiger -driver oracle.jdbc.OracleDriver -url jdbc:oracle:thin:@localhost:1521:ORCL

java -classpath createschema.jar;dalimodel.jar;commons-cli-1.0.jar;toplink-essentials.jar;ojdbc14.jar oracle.toplink.jpa.example.inventory.util.PopulateDatabase -user scott -password tiger -driver oracle.jdbc.OracleDriver -url jdbc:oracle:thin:@localhost:1521:ORCL