The following tables form part of a database held in a relational DBMS (Primary Key, Foreign Key): Employee (empNo, empName, empAddress, empGender, empPosition, deptNo) Department (deptNo, deptName, ManagerEmpNo) Project (projNo, projName, deptNo) WorksOn (empNo, projNo, dateWorked, hoursWorked) …where: Employee contains employee details Department contains department details. ManagerEmpNo identifies the employee who is the Manager of the department. There is only one Manager for each department. Project contains details of the projects in each department. No two departments can run the same project. WorksOn contains details of the hours worked by each employee on each project. Give SQL for the following queries List all details of all female employees List the Names and Addresses of all employees who work in the department named “Human Resources”. List the Names of all employees who worked on the project named Manhattan
The following tables form part of a database held in a relational DBMS (Primary Key, Foreign Key): Employee (empNo, empName, empAddress, empGender, empPosition, deptNo) Department (deptNo, deptName, ManagerEmpNo) Project (projNo, projName, deptNo) WorksOn (empNo, projNo, dateWorked, hoursWorked) …where: Employee contains employee details Department contains department details. ManagerEmpNo identifies the employee who is the Manager of the department. There is only one Manager for each department. Project contains details of the projects in each department. No two departments can run the same project. WorksOn contains details of the hours worked by each employee on each project. Give SQL for the following queries List all details of all female employees List the Names and Addresses of all employees who work in the department named “Human Resources”. List the Names of all employees who worked on the project named Manhattan
Chapter2: Database Design Fundamentals
Section: Chapter Questions
Problem 11RQ
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Question
- The following tables form part of a
database held in a relational DBMS (Primary Key, Foreign Key):
Employee (empNo, empName, empAddress, empGender, empPosition, deptNo)
Department (deptNo, deptName, ManagerEmpNo)
Project (projNo, projName, deptNo)
WorksOn (empNo, projNo, dateWorked, hoursWorked)
…where:
Employee contains employee details
Department contains department details. ManagerEmpNo identifies the employee who is the Manager of the department. There is only one Manager for each department.
Project contains details of the projects in each department. No two departments can run the same project.
WorksOn contains details of the hours worked by each employee on each project.
Give SQL for the following queries
- List all details of all female employees
- List the Names and Addresses of all employees who work in the department named “Human Resources”.
- List the Names of all employees who worked on the project named Manhattan
- List the total number of hours worked on the project named Manhattan
- List the total number of hours worked on each project by each of the employees (i.e., each employee who has worked on a project should be listed along with the total number of hours they have worked)
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