How to separate / validate multiple emails?

Question

Hi,
User enters single or multiple emails in the field. We provide help saying that all emails must be separated by either a comma or semicolon. Not everyone follows that so if user enters [email protected] [email protected] the email is not sent. There can be more than 2 emails.
So is there a way to check that those emails are separated by either comma or semicolon, and if not add it before email is sent?
Thank you

Answer 1

Hi Frank,
I am trying to validate multiple email addresses as well. Currently, my function works for only one email address. Is there a way to extend this function? I am using Oracle 9i.
FUNCTION validate_email_format(p_address IN VARCHAR2) RETURN VARCHAR2 IS
  l_dot_pos    NUMBER;
  l_at_pos     NUMBER;
  l_str_length NUMBER;
BEGIN
  l_dot_pos := instr(p_address, '.');
  l_at_pos  := instr(p_address, '@');
  l_str_length := LENGTH(p_address);
  if ((l_dot_pos = 0) OR (l_at_pos = 0) OR (l_dot_pos = l_at_pos + 1) OR
      (l_at_pos = 1)  OR (l_at_pos = l_str_length ) OR
      (l_dot_pos = l_str_length)) then
    return 'FAILURE';
  end if;
  if instr(substr(p_address, l_at_pos), '.') = 0 then
    return 'FAILURE';
  end if;
  return 'SUCCESS';
END validate_email_format;Thanks