| Package | Description | 
|---|---|
| oracle.jdbc | 
 Beginning in Oracle9i, the Oracle extensions to JDBC are captured in the package  
oracle.jdbc. | 
| oracle.jdbc.dcn | 
 This package is an Oracle JDBC extension that provides interfaces to access the Database Change Notification feature of Oracle. 
 | 
| Class and Description | 
|---|
| DatabaseChangeRegistration | 
| Class and Description | 
|---|
| DatabaseChangeEvent
 Once you have registered your interest into certain objects in the database, you get notified when these objects change. 
 | 
| DatabaseChangeEvent.AdditionalEventType | 
| DatabaseChangeEvent.EventType | 
| DatabaseChangeListener
 The listener interface for receiving Database Change Notification (DCN) events. 
 | 
| QueryChangeDescription
 This interface describes a query result change. 
 | 
| QueryChangeDescription.QueryChangeEventType | 
| RowChangeDescription
 This interface describes the row level information that can be retrieved from a database change event. 
 | 
| RowChangeDescription.RowOperation | 
| TableChangeDescription
 This interface describes a database change at the table level. 
 | 
| TableChangeDescription.TableOperation |