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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Fundamentals Of Database Systems

ISBN: 9780133970777

7th Edition

Authors: Ramez Elmasri, Shamkant Navathe

Question Posted: Nov 09, 2021 01:06 AM

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Describe the three-schema architecture. Why do we need mappings among schema levels? How do different schema definition

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Threeschema architecture is an idea in relational database design that breaks a dat...View the full answer

Fundamentals Of Database Systems

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