Question - What’s virtual data warehousing?
Answer -
A virtual data warehouse provides a collective view of the finished data. Therein warehouse a virtual data warehouse has no historical data. It is often considered as a logical data model of the given metadata. Virtual data warehousing is that the de facto data system strategy for supporting analytical deciding. It’s one of the simplest ways for translating data and presenting it within the form which will be employed by decision-makers. It provides a semantic map that allows the top user also for viewing because the data is virtualized.