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4th Semester
AD-402
Unit 3 Notes

AD-402 Database Management System Unit 3 Notes

Notes and important questions for unit 3: Database Design and Query Optimization.

Unit 3 · Short notes Database Design and Query Optimization Normalization: introduction, normal forms, functional dependency · Decomposition, dependency preservation and lossless join · Issues with null‑valued and dangling tuples · Multivalued dependencies · Query optimization: introduction and optimization steps · Algorithms for implementing select, project, and join operations

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