How to swap two values without using the third variable using the procedure

How to exchange the two values without using the third variable using the procedure?

In a procedure using two mode we pass two values A = x and B = y, and let us pass parameters to receive the output has A = y and B = x without using the third variable

Published by: Millar on August 19, 2012 11:23

Your question doesn't seem wise. As written, there is no reason to a third variable, just

CREATE OR REPLACE PROCEDURE(
  x IN number,
  y IN number,
  a OUT number,
  b OUT number
)
AS
BEGIN
  a := y;
  b := x;
END;

If it's an interview question, I suspect that the intention was that you had two settings IN OUT and you wanted to swap the values without the help of a third variable.

Justin

Tags: Database

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