Snapshot of data warehouse

Question

Write down the snapshot with reference to data warehouse?

Answer 1

A snapshot is in a data warehouse can be employed to track activities. For illustration, each and every time an employee attempts to alter his address, the data warehouse can be attentive for a snapshot. This means which each snap shot is carried when some event is fired.

A snapshot has three constituents which are illustrated below:

• Time when event incurred.
• A key to make out the snap shot.
• Data which relates to the key.