Subschema in Database

Subschema in Database

Subschema in Database

A database may have many schemas at the view level.Subschema describes these different views. Different users at the view level is allowed to access the database according to the subschema. Thus subschema represent different view point of the users at the view level.

Different users at the view level is able to access a  part of the database according to their access rights.Thus subschema can be consider as a subset of the logical schema which provide different views to different users