Concepts and Architecture Interview Question:

Tell me what is the difference between materialized view and snapshot?

Submitted by: Administrator

A materialized view is a replica of a target master from a singlepoint in time. The concept was first introduced with Oracle7 termed asSNAPSHOT. In Oracle release 7.1.6 snapshots were enhanced to enableDMLs along with a new terminology, updatable snapshots. With Oracle8.1.6 snapshots started to be used in data warehouse environments so anew terminology materialized view was introduced to address bothdistributed and data warehouse materialized views.
Submitted by: Administrator