DB2 JDBC connection url with instance name

Question

Current JDBC URL using looks like jdbc:db2://server:446/DBname

Want to connect to a different instance by providing the instance name. How should be the connection string for this?

Answer 1

In jdbc you do not connect to an instance, instead you connect to a database. It is possible to ATTACH to a DB2-instance but normally you don't want to do that unless you are a DBA. To specify a different DB2-instance, mention its hostname(or IP-address, or Virtual-IP-address) and its port-number. If a hostname runs multiple DB2-instances, each DB2-instance will have a unique port-number on that hostname.