Question

The most important schema for application programmers is

Answer 1

Answer:

The external level is the user’s view of the database and closest to the users.This level describes that part of the database that Fundamentals of Database Management .System is relevant to the user. Most of the users of database are not concerned with

all the information contained in the database. Instead, they need only a part of  the  database  relevant  to  them. An external schema describes each external view. The external schema consists of the definition of the logical records

and the relationships in the external view.