Jdbc DB2 multiple Connection in CRON

Question

I need to run a Java app via CRON (SunOS) that copies data from tables in one database and inserts them into identical tables in a second database. The databases are in different instances. For the CRONS I've written that work with one database - I usually set environment vars (DB2INSTANCE, INSTHOME) in the shell script and it finds the database but that doesnt work with two databases in different instances. I thought maybe I could change the connection code to be more specific about where to find the database - but I can't figure out how. Here is the current connection code (it is the same except for dbname, username, password for both databases).
java.sql.Connection con = null;
Class.forName("COM.ibm.db2.jdbc.app.DB2Driver");
con=DriverManager.getConnection("jdbc:db2:dbname","username","passwd");
con.setAutoCommit(false);
con.setTransactionIsolation(Connection.TRANSACTION_SERIALIZABLE);
Is there some way I can specify host and/or port? Please help.
Thank you in advance
...annie

Answer 1

You might not be able to do that with you jdbc driver.
If it is possible then you probably need to look into the specifics of how the connection works. Right now you are defining something in the OS (the env vars) that specifies some connection information. You need to figure out how to do that entirely in the connection strings.
You might search this sight using the key works "connetion-less" and "DB2". That might help. If not then search just for "connection-less" and start looking through IBM docs to see if it is possible.