Entity-Relationship (ER) Diagrams - Northeastern University
Entity-Relationship (ER) Diagrams Lecture 7 February 11, 2018 Entity-Relationship (ER) Diagrams 1. CS3200 –Database Design Spring 2018 Derbinsky Outline 1. Context ... Social Security number (SSN), street address, salary, (gender), and birth date. An employee is