Selecting from two tables and confirming from them despites they not relate

Question

Please I need a query to select from two tables that are not related to each other.
I also want to confirm data's as in verify wether what the user has entered is in accordance with what is in the tables
Examples
the first table is named "Card" and the second table is named "Student_Details"
Card table contains a column named "Pin_Number".
The Student_Details table contains fields such as Exam_Number, Name, Age, Sex.
The user has to Enter the Pin_Number which has to be confirmed in the Card table and Exam_Number which has to be confirmed in the Student_Details table and verify that both data's are correct.
Please I need the SQL and PL/SQL queries for this problem.
Thanks

Answer 1

Hi,
I think you need two different queries
You can write a procedure like:
create or replace procedure p1 (p_pin_number number, p_exam_number)
is
  r_card_row            card%rowtype;
  r_student_details     student_details%rowtype;
  cursor c1 is
  select *
    from card
   where pin_number = p_pin_number;
  cursor c2 is
  select *
    from student_details
   where exam_number = p_exam_number;
begin
  open c1;
    loop
      fetch c1 into  r_card_row;
      exit when c1%notfound;
      ....  do whatever you want..... and the samething you can do with other cursor
    end loop;
  close c1;
end p1;Hope this helps
Ghulam