Online GK Series

This site is dedicated to the aspirants of competitive exams SSC, UPSC, Railways, Postal Assistants, Bank, GATE and NET


In order to use a DBMS, it is important to understand :

A the physical schema
B all subschemas that the system supports
C one subschema
D both [A] and [B]
Answer & Explanation
Option: [C]

Your Valuable Comments Please...

Useful Computer Science EBooks