Yes, it is good to use the snapshot to feed the initial data from the database.

Your Data Adapter will need to take care of getting the data from the DB and create both the initial snapshots and the updates.

We don't currently provide ready-made Adapter examples that get data from a DB. As a starting point, you might find this post useful: http://www.lightstreamer.com/vb/show...p?t=231&page=2