PL/SQL Cursor Exercises: Displays employee name and number of jobs he or she done at past. Displays employee name and job count by job

PL/SQL Cursor: Exercise-30 with Solution

Write a block in PL/SQL to displays employee name and number of jobs he or she done at past.

Displays employee name and job count by job.

Sample Solution:

Table: employees

employee_id		integer
first_name		varchar(25)
last_name		varchar(25)
email			archar(25)
phone_number		varchar(15)
hire_date		date
job_id			varchar(25)
salary			integer
commission_pct		decimal(5,2)
manager_id		integer
department_id		integer

job_id				varchar(25)
job_title			varchar(50)
min_salary			integer
max_salary			integer

employee_id			integer
start_date			date
end_date			date
job_id				varchar(25)
department_id			integer

PL/SQL Code:

DECLARE
    CURSOR emp_job_cur IS
      SELECT job_id,
             job_title
      FROM   jobs
      WHERE  job_id IN (SELECT job_id
                        FROM   employees)
      ORDER  BY 2;
    CURSOR employees_cur (
      emp_jobid VARCHAR) IS
      SELECT first_name,
             Count(start_date) no_of_jobs
      FROM   employees e
             left outer join job_history jh USING (employee_id)
      WHERE  e.job_id = emp_jobid
      GROUP  BY first_name
      ORDER  BY 1;
BEGIN
    FOR emp_job_rec  IN emp_job_cur LOOP
		dbms_output.Put_line('---------------------------------------');	
        dbms_output.Put_line('Job Title: '||emp_job_rec.job_title);
		dbms_output.Put_line('---------------------------------------');

        FOR employee_list IN employees_cur( emp_job_rec.job_id) LOOP
            dbms_output.Put_line('    '
                                 || Rpad(employee_list.first_name, 20)
                                 || employee_list.no_of_jobs);
        END LOOP;
    END LOOP;
END; 
/ 

Sample Output:

SQL> /
---------------------------------------
Job Title: Accountant
---------------------------------------
Daniel              0
Ismael              0
John                0
Jose Manuel         0
Luis                0
---------------------------------------
Job Title: Accounting Manager
---------------------------------------
Shelley             0
---------------------------------------
Job Title: Administration Assistant
---------------------------------------
Jennifer            2
---------------------------------------
Job Title: Administration Vice President
---------------------------------------
Lex                 1
Neena               2
...

Flowchart:

Improve this sample solution and post your code through Disqus

Previous: Write a PL/SQL block to display the department name, name of the manager, number of employees in each department, and number of employees listed in job_history.
Next: Write a block in PL/SQL to display the name of department and their head.