In one word: no.
In-memory databases: as long as there is ennough RAM available, you can keep adding data.
On disk tables and data models: as long as NTFS supports the file size, you can keep adding data to tables and data models.
In short: with respect to data, QlikView is only limited by the environment constraints. Actually there is only one limit imposed by QlikVeiw itself: you cannot have more than 2 billion distinct values in a single field.
Good luck,
Peter
