'Functional dependencies fds' presentation slideshows

LECTURE 5: Schema Refinement and Normal Forms

LECTURE 5: Schema Refinement and Normal Forms. SOME OF THESE SLIDES ARE BASED ON YOUR TEXT BOOK. Anomalies Insertion anomalies Cannot record filmType without starName Deletion anomalies If we delete the last star, we also lose the movie info. Modification (update) anomalies. DECOMPOSITION.

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Functional Dependencies and Normalization for Relational Databases

Chapter 4. Functional Dependencies and Normalization for Relational Databases. Instructor: Churee Techawut. CS (204)321 Database System I. Outlines. 1) Informal Design Guidelines for Relational Databases 2) Functional Dependencies (FDs) 3) Normal Forms Based on Primary Keys

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Subject Name: Database Management systems Subject Code: 10CS54 Prepared By: Sindhuja K

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Revisit FDs & BCNF Normalization

Revisit FDs & BCNF Normalization. Instructor: Mohamed Eltabakh meltabakh@cs.wpi.edu. Announcements. Project Phase 2 is due Now !!! Project Phase 3 will be out today (Nov. 11) and due on Nov. 22 (8:00am) Project feedback !!! Keep in mind the midterm exam is on Nov. 22. FDs and Normalization.

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Functional Dependencies

Functional Dependencies. R&G Chapter 19. Review: Database Design. Requirements Analysis user needs; what must database do? Conceptual Design high level descr (often done w/ER model) Logical Design translate ER into DBMS data model Schema Refinement consistency,normalization

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Functional Dependencies

Functional Dependencies. R&G Chapter 19 Lecture 13. Science is the knowledge of consequences, and dependence of one fact upon another. Thomas Hobbes (1588-1679 ). Review: Database Design. Requirements Analysis user needs; what must database do? Conceptual Design

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