Use SessionName to determine the session with which a dataset component is associated. SessionName is automatically set to the name of the SessionName property of the database component with which a dataset component is associated. If SessionName is blank, a dataset component is automatically associated with the default session, Session. 

To associate a dataset component with a different session, SessionName must match the SessionName property of an existing session component that is also used by the database component with which this dataset is associated. 

DBSession 

Database 

Session 

Associating a Database Component with a Session 

Associating a Dataset with Database and Session Connections 

Using Multiple Update Objects 

Adding a Session to the Web Module