Describe the three-schema architecture. Why do we need mappings among schema levels? How do different schema definition
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Describe the three-schema architecture. Why do we need mappings among schema levels? How do different schema definition languages support this architecture?
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Threeschema architecture is an idea in relational database design that breaks a dat...View the full answer
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Related Book For
Fundamentals Of Database Systems
ISBN: 9780133970777
7th Edition
Authors: Ramez Elmasri, Shamkant Navathe
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