```
DECLARE
  v_regno  VARCHAR2(10);
  v_name    VARCHAR2(20);
  v_dob     DATE;
  v_course  VARCHAR2(20);
 
BEGIN
  v_regno := &regno;  -- Input registerno from user
 
  FOR rec IN (SELECT name, dob, course
                FROM students
                WHERE registerno = v_regno)
  LOOP
    v_name := rec.name;
    v_dob := rec.dob;
    v_course := rec.course;
 
    DBMS_OUTPUT.PUT_LINE('Student Details:');
    DBMS_OUTPUT.PUT_LINE('Registerno: ' || v_regno);
    DBMS_OUTPUT.PUT_LINE('Name: ' || v_name);
    DBMS_OUTPUT.PUT_LINE('Date of Birth: ' || v_dob);
    DBMS_OUTPUT.PUT_LINE('Course: ' || v_course);
  END LOOP;
END;
```

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