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A company database needs to store information about employees (identified by ssn, with salary and phone as attributes), departments (identified by dno, with dname and budget as attributes),Project identified as( Projid, name and location) as attributes and children of employees (with name and age as attributes). Employees work in departments; each department is managed by an employee; Department controls project. Employee works on project; a child must be identified uniquely by name when the parent (who is an employee; assume that only one parent works for the company) is known. We are not interested in information about a child once the parent leaves the company. Required Using the Chen model - Draw an ER diagram that captures this information showing the entities, relatioship, atributes and cardinality

A company database needs to store information about employees (identified by ssn, with salary and phone as attributes), departments (identified by dno, with dname and budget as attributes),Project identified as( Projid, name and location) as attributes and children of employees (with name and age as attributes). Employees work in departments; each department is managed by an employee; Department controls project. Employee works on project; a child must be identified uniquely by name when the parent (who is an employee; assume that only one parent works for the company) is known. We are not interested in information about a child once the parent leaves the company. Required Using the Chen model - Draw an ER diagram that captures this information showing the entities, relatioship, atributes and cardinality

Database Systems: Design, Implementation, & Management
Database Systems: Design, Implementation, & Management
12th Edition
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Carlos Coronel, Steven Morris
Chapter9: Database Design
Section: Chapter Questions
Problem 5P
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Using the following information below to create the ERD requirements for a simple database for a company database: е. A company database needs to store information about employees (identified by ssn, with salary and phone as attributes), departments (identified by dno, with dname and budget as attributes),Project identified as( Projid, name and location) as attributes and children of employees (with name and age as attributes). Employees work in departments; each department is managed by an employee; Department controls project. Employee works on project; a child must be identified uniquely by name when the parent (who is an employee; assume that only one parent works for the company) is known. We are not interested in information about a child once the parent leaves the company. Required Using the Chen model - Draw an ER diagram that captures this information showing the entities, relatioship, atributes and cardinality
Transcribed Image Text:Using the following information below to create the ERD requirements for a simple database for a company database: е. A company database needs to store information about employees (identified by ssn, with salary and phone as attributes), departments (identified by dno, with dname and budget as attributes),Project identified as( Projid, name and location) as attributes and children of employees (with name and age as attributes). Employees work in departments; each department is managed by an employee; Department controls project. Employee works on project; a child must be identified uniquely by name when the parent (who is an employee; assume that only one parent works for the company) is known. We are not interested in information about a child once the parent leaves the company. Required Using the Chen model - Draw an ER diagram that captures this information showing the entities, relatioship, atributes and cardinality
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