PL/SQL Control Statement Exercises: Display which day is a specific date

PL/SQL Control Statement: Exercise-15 with Solution

Write a PL/SQL program to display which day is a specific date

Sample Solution:

PL/SQL Code:

SET serveroutput ON
DECLARE
    t_dt  DATE := To_date('&input_a_date', 'DD-MON-YYYY');
    t_day VARCHAR2(1);
BEGIN
    t_day := To_char(t_dt, 'D');

    CASE t_day
      WHEN '1' THEN
        dbms_output.Put_line ('The date you entered is Sunday.');
      WHEN '2' THEN
        dbms_output.Put_line ('The date you entered is Monday.');
      WHEN '3' THEN
        dbms_output.Put_line ('The date you entered is Tuesday.');
      WHEN '4' THEN
        dbms_output.Put_line ('The date you entered is Wednesday.');
      WHEN '5' THEN
        dbms_output.Put_line ('The date you entered is Thursday.');
      WHEN '6' THEN
        dbms_output.Put_line ('The date you entered is Friday.');
      WHEN '7' THEN
        dbms_output.Put_line ('The date you entered is Saturday.');
    END CASE;
END; 
/

Sample Output:

 SQL> /
SQL> /
Enter value for input_a_date: 15-may-2018
old   2:     t_dt  DATE := To_date('&input_a_date', 'DD-MON-YYYY');
new   2:     t_dt  DATE := To_date('15-may-2018', 'DD-MON-YYYY');
The date you entered is Tuesday.

PL/SQL procedure successfully completed.

Sample Output:

Enter value for input_a_date: 14-sep-2017
old   2:     t_dt  DATE := To_date('&input_a_date', 'DD-MON-YYYY');
new   2:     t_dt  DATE := To_date('14-sep-2017', 'DD-MON-YYYY');
The date you entered is Thursday.

PL/SQL procedure successfully completed.

Flowchart:

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