The following relational schema forms part of an Employees database. The primary keys are underlined and foreign keys are in italics. Job (jobID, jobTitle, minSalary, maxSalary) Dependent (dependentID, firstName, lastName, relationship, employeeID) Department (departmentID, departmentName, locationID) Location (locationID, street, postcode, city, state) Employee (employeeID, firstName, lastName, phoneNumber, salary, jobID, departmentID) Employee employeeID works as jobID at a department departmentID located at locationID. The employee has dependent(s) dependentID. 1. List employee names and dependent names. Also, include employees without any dependents. 2. For employees who earn less or equal to 4000, list the employee names, their department names, and dependent names. 3. What is the average salary of ‘Manager’ (jobTitle) in each department? Show departments’ names, job identification of ‘Manager’ and average salary. Give the new column an alias. 4. Employee whose full name is ‘Fatima Abdul Fateh’ has been promoted to ‘Manager’ and her salary now starts at the minimum salary for ‘Manager’. Change the relevant record to reflect the new job and salary of ‘Fatima Abdul Fateh’. 5. List the number of employees working in each state. Show the state and the number of employees. Give the new column an alias and sort the results according to the state in ascending order.
The following relational schema forms part of an Employees
Job (jobID, jobTitle, minSalary, maxSalary)
Dependent (dependentID, firstName, lastName, relationship, employeeID)
Department (departmentID, departmentName, locationID)
Location (locationID, street, postcode, city, state)
Employee (employeeID, firstName, lastName, phoneNumber, salary, jobID, departmentID)
Employee employeeID works as jobID at a department departmentID located at locationID. The employee has dependent(s) dependentID.
1. List employee names and dependent names. Also, include employees without any dependents.
2. For employees who earn less or equal to 4000, list the employee names, their department names, and dependent names.
3. What is the average salary of ‘Manager’ (jobTitle) in each department? Show departments’ names, job identification of ‘Manager’ and average salary. Give the new column an alias.
4. Employee whose full name is ‘Fatima Abdul Fateh’ has been promoted to ‘Manager’ and her salary now starts at the minimum salary for ‘Manager’. Change the relevant record to reflect the new job and salary of ‘Fatima Abdul Fateh’.
5. List the number of employees working in each state. Show the state and the number of employees. Give the new column an alias and sort the results according to the state in ascending order.
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