Cardinality ratios often dictate the detailed design of a database. The cardinality ratio depends on the real-world meaning of the entity types involved and is defined by the specific application. For the following binary relationships, suggest cardinality ratios based on the common-sense meaning of the entity types. Clearly state any assumptions you make. ENTITY 1 1. STUDENT 2. STUDENT 3. CLASSROOM 4. COUNTRY 5. COURSE 6. EMPLOYEE 7. STUDENT 8. CLASS 9. INSTRUCTO R 10. SUBJECT CARDINALITY ENTITY 2 SOCIAL SECURITY_CARD TEACHER WALL CURRENT PRESIDENT TEXTBOOK COMPANY CLASS INSTRUCTOR OFFICE INSTRUCTOR

Cardinality ratios often dictate the detailed design of a database. The cardinality ratio depends on the real-world meaning of the entity types involved and is defined by the specific application. For the following binary relationships, suggest cardinality ratios based on the common-sense meaning of the entity types. Clearly state any assumptions you make. ENTITY 1 1. STUDENT 2. STUDENT 3. CLASSROOM 4. COUNTRY 5. COURSE 6. EMPLOYEE 7. STUDENT 8. CLASS 9. INSTRUCTO R 10. SUBJECT CARDINALITY ENTITY 2 SOCIAL SECURITY_CARD TEACHER WALL CURRENT PRESIDENT TEXTBOOK COMPANY CLASS INSTRUCTOR OFFICE INSTRUCTOR

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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