Slide 1Database Management Systems, R. Ramakrishnan and J. Gehrke1 The Relational Model Chapter 3 Slide 2 Database Management Systems, R. Ramakrishnan and J. Gehrke2 Why…

1. Presentation• Motivation and Target group • SNS   Design  Usability  Implementering  Conceptual models  Test and conclusion 2. Introduction…

Unit 3 _Part2_(2010-2011) © Aditya Engineering College A major strength of the relational model: supports simple, powerful querying of data. Queries can be written intuitively,…

The Relational Model These slides are based on the slides of your text book. Why Study the Relational Model? By âCoddâ, 1970 Implementation: IBMâs, System R, by Chamberlain…

Relational Database: Definitions Relational database: a set of relations Relation: made up of 2 parts: Instance : a table, with rows and columns. #Rows = cardinality, #fields…