Question: Describe the three-schema architecture.Why do we need mappings between schema levels? How do different schema definition languages support this architecture? Discuss the differences between database

Describe the three-schema architecture.Why do we need mappings between schema levels? How do different schema definition languages support this architecture?

Discuss the differences between database systems and information retrieval systems.

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The question is complete lets break it down and address each part in detail Part 1 ThreeSchema Architecture Step 1 Description of the ThreeSchema Architecture The threeschema architecture is a framewo... View full answer

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