PL/SQL Control Statement Exercises: Count the number of employees in department 50 and check whether this department have any vacancies or not. There are 45 vacancies in this department
PL/SQL Control Statement: Exercise-7 with Solution
Write a PL/SQL program to count the number of employees in department 50 and check whether this department have any vacancies or not. There are 45 vacancies in this department.
Sample Solution:
PL/SQL Code:
SET SERVEROUTPUT ON
DECLARE
tot_emp NUMBER;
BEGIN
SELECT Count(*)
INTO tot_emp
FROM employees e
join departments d
ON e.department_id = d.department_id
WHERE e.department_id = 50;
dbms_output.Put_line ('The employees are in the department 50: '
||To_char(tot_emp));
IF tot_emp >= 45 THEN
dbms_output.Put_line ('There are no vacancies in the department 50.');
ELSE
dbms_output.Put_line ('There are some vacancies in department 50.');
END IF;
END;
/
Sample Output:
The employees are in the department 50: 45 There are no vacancies in the department 50. PL/SQL procedure successfully completed.
Flowchart:
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Next: Write a PL/SQL program to display the description against a grade.
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