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Q1) Draw the ER Diagram for the scenario below. The company database keeps track of company's employee, department and projects. We store Employee's name, ssn, address, salary, gender, date of birth and age. An employee is assigned to one department, but may work on several projects which are not necessarily controlled by the same department. A particular employee manages the department. Each department has a unique name, unique number and several locations. The department controls number of projects each of which has a unique name, unique number and a single location. We want to keep track of the dependents of each employee for insurance purpose. We keep each dependent's first name, sex, birth date and relationship to employee.

Q1) Draw the ER Diagram for the scenario below. The company database keeps track of company's employee, department and projects. We store Employee's name, ssn, address, salary, gender, date of birth and age. An employee is assigned to one department, but may work on several projects which are not necessarily controlled by the same department. A particular employee manages the department. Each department has a unique name, unique number and several locations. The department controls number of projects each of which has a unique name, unique number and a single location. We want to keep track of the dependents of each employee for insurance purpose. We keep each dependent's first name, sex, birth date and relationship to employee.

Database System Concepts
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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Q1) Draw the ER Diagram for the scenario below. The company database keeps track of company's employee, department and projects. We store Employee's name, ssn, address, salary, gender, date of birth and age. An employee is assigned to one department, but may work on several projects which are not necessarily controlled by the same department. A particular employee manages the department. Each department has a unique name, unique number and several locations. The department controls number of projects each of which has a unique name, unique number and a single location. We want to keep track of the dependents of each employee for insurance purpose. We keep each dependent's first name, sex, birth date and relationship to employee. Q2) The "Course Enrollment" table is given below. Decompose it into BCNF (Boyce- Codd Normal Form). Clearly define the new form of the table and show the functional dependencies. StudentID 351 351 352 353 354 Subject Java SQL Java C++ Java Lecturer John Smith Adam Johnson Daisy Joshi Monica Shah John Smith
Transcribed Image Text:Q1) Draw the ER Diagram for the scenario below. The company database keeps track of company's employee, department and projects. We store Employee's name, ssn, address, salary, gender, date of birth and age. An employee is assigned to one department, but may work on several projects which are not necessarily controlled by the same department. A particular employee manages the department. Each department has a unique name, unique number and several locations. The department controls number of projects each of which has a unique name, unique number and a single location. We want to keep track of the dependents of each employee for insurance purpose. We keep each dependent's first name, sex, birth date and relationship to employee. Q2) The "Course Enrollment" table is given below. Decompose it into BCNF (Boyce- Codd Normal Form). Clearly define the new form of the table and show the functional dependencies. StudentID 351 351 352 353 354 Subject Java SQL Java C++ Java Lecturer John Smith Adam Johnson Daisy Joshi Monica Shah John Smith
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