Hi Mone,
ya we can set the initial snapshot(static data form DB) for each subscribe call...
But as per my understanding if same item is subscribed by more than one client at a time, the subscribe method in DataAdapter will be called only once(for first client) by lightstreamer kernel, subsequent client request will be handled by lightstreamer kernel itself, call will not go to subscribe method of Data adpter.In this case subsequent clients will not receive snapshot data. so how to pass the initial snapshot(static data from db)to the subsequent clients.

and every client should be able to see same set of data initially..