Data connections are used to retrieve data from and send changes to external databases.
You must define all the sources of data for business object fields that are used in event rules. You must also define sources of data that are used to populate any action object fields that are not populated through event payloads.
For example, information about the value level for a customer (for example Gold or Platinum) might not be part of the data provided in the event payload but it is available from the customer master record contained in another database. Data connection definition is also required before a JDBC technology connector that references the data connection can be defined.
You can define as a hosted database any of the supported databases (for example, DB2®) for which a data connection can be defined. The hosted database must be accessible to Event Designer and to the event runtime server.
To define a hosted database: