Oracle Database Fundamental I
Practice 6 Solutions
1. The HR department needs a query that prompts the user for an employee last name. The query then displays the last name and hire date of any employee in the same department as the
employee whose name they supply (excluding that employee). For example, if the user enters
employee whose name they supply (excluding that employee). For example, if the user enters
Zlotkey, find all employees who work with Zlotkey (excluding Zlotkey).
Solution: select last_name, hire_date
from employees
where department_id =
(select department_id from employees where last_name like ‘&name’)and last_name<> ‘&name’;
2. Create a report that displays the employee number, last name, and salary of all employees who earn more than the average salary. Sort the results in order of ascending salary.
Solution: select employee_id, last_name, salary
from employees
where salary > (select avg(salary) from employees)
order by salary;
3. Write a query that displays the employee number and last name of all employees who work in a department with any employee whose last name contains a u. Place your SQL statement in a text file named lab_06_03.sql. Run your query.
Solution: select employee_id, last_name
from employees
where department_id in (select department_id from employees where last_name like ‘%u%’);
4. The HR department needs a report that displays the last name, department number, and job ID of all employees whose department location ID is 1700.
Solution: select last_name, department_id, job_id
from employees
where department_id in (select department_id from departments where location_id =1700);
Modify the query so that the user is prompted for a location ID.
Solution: select last_name, department_id, job_id
from employees
where department_id in (select department_id from departments where location_id =&Location);
5. Create a report for HR that displays the last name and salary of every employee who reports to King.
Solution: select last_name, salary
from employees
where manager_id in (select employee_id from employees where last_name=’King’);
6. Create a report for HR that displays the department number, last name, and job ID for every employee in the Executive department.
Solution: select department_id, last_name, job_id
from employees
where department_id in (select department_id from departments where department_name = ‘Executive’);
7. Modify the query in lab_06_03.sql to display the employee number, last name, and salary of all employees who earn more than the average salary and who work in a department with any employee whose last name contains a u. Resave lab_06_03.sql as lab_06_07.sql. Run the statement in lab_06_07.sql.
Solution: select employee_id, last_name, salary
from employees
where salary > (select avg(salary) from employees) and
department_id in (select department_id from employees where last_name like ‘%u%’);
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