A top-to-bottom relationship among the items in a database is established by a

A. Hierarchical schema B. Network schema C. Relational schema D. All of the above E. None of the above

Question added by Emad Mohammed said abdalla , ERP & IT Software, operation general manager . , AL DOHA Company
Date Posted: 2015/01/11

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by Ibrahim Hussein Mayaleh , Sales & Business Consultant and Trainer , Self-employed

I have no idea, but thanx for the invitation

by Vinod Jetley , Assistant General Manager , State Bank of India

A. Hierarchical schema

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