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4th Semester
IT-405
Unit 4 Notes

IT-405 Data Base Management System Unit 4 Notes

Notes and important questions for unit 4: Relational Database Design.

Unit 4 · Short notes Relational Database Design Functional dependencies – definition, trivial and non‑trivial FD · Closure of FD set, irreducible set of FD · Normalization – 1NF, 2NF, 3NF · Decomposition preserving dependencies, lossless join · Boyce‑Codd Normal Form (BCNF) · Multivalued dependency, Fourth Normal Form (4NF)

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