Normalization
Chapter3
© Copyright 2005 dbMotion Ltd. By dbMotion RIM Based Semantic Interoperability Assaf Halevy, Co – Founder & VP Strategic Accounts [email protected].
Data Warehouse Planning With 1 K E Y
NORMALIZATION. Normalization Normalization: The process of decomposing unsatisfactory "bad" relations by breaking up their attributes into smaller relations.
Mapping an ERD to a Relational Database To map an ERD to a relational database, five rules are defined to govern how tables are constructed. 1)Rule for.
Lecture #2 October 5 th, 2000 Conceptual Modeling Administration: –HW1 available –Details on projects –Exam date –XML comment.
CONCEPTS OF E-R MODEL. CONTENTS Entity Attributes Data Value Entity Types Types of Entity Types Relationships Relationship Constraints.
Advantages of using a Data Base
DATABASE DESIGN LECTURE FOUR. Why Design a Database? Goal: To produce an information system that adds value for the user Reduce costs Increase sales/revenue.
Entity-Relation Model. E-R Model The Entity-Relationship (ER) model was originally proposed by Peter in 1976 ER model is a conceptual data model that.
