Join this two table HELP

Question

Hi to all.. i have this two table , the problem is i dunno how to join this two table into one, becoz in the forms i have two button "BUTTON A IS FOR TABLE A WHICH IS THE EMPLOYEE.. AND BUTTON B IS FOR ADMIN... WHAT I WANT IS TO MAKE THIS TWO BUTTON INTO ONE BUTTON.. i;m using form6i and run in client server..
Guys any one here know plz help how to do this..
TABLE 1
BEGIN
iF :username IS NULL THEN
MESSAGE ('Please enter Username ');
MESSAGE ('Please enter Username ');
GO_ITEM('username');
RAISE FORM_TRIGGER_FAILURE;
end if;
IF :PASSNAME1 IS NULL THEN
MESSAGE('Please enter password.');
MESSAGE('Please enter password.');
GO_ITEM('PASSNAME1');
RAISE FORM_TRIGGER_FAILURE;
end if;
select username,passname
into :pass.username,:pass.passname1
from Employees
where :pass.username=username
and :pass.passname1=passname;
Message('Access Granted');
Message('Access Granted');
go_block('maina');
hide_view('pass1');
exception
when no_Data_found then
set_alert_Property('wrong',Alert_Message_text,'Invalid Password');
if show_alert('wrong')=alert_button1 then
          go_item('PASSNAME1');
          :passname1:=null;
          end if;
end;
TABLE 2
BEGIN
iF :username IS NULL THEN
MESSAGE ('Please enter Username ');
MESSAGE ('Please enter Username ');
GO_ITEM('username');
RAISE FORM_TRIGGER_FAILURE;
end if;
IF :PASSNAME1 IS NULL THEN
MESSAGE('Please enter password.');
MESSAGE('Please enter password.');
GO_ITEM('PASSNAME1');
RAISE FORM_TRIGGER_FAILURE;
end if;
select username,passname
into :pass.username,:pass.passname1
from Admin1
where :pass.username=username
and :pass.passname1=passname;
Message('Access Granted');
Message('Access Granted');
go_block('maina');
hide_view('pass1');
exception
when no_Data_found then
set_alert_Property('wrong',Alert_Message_text,'Invalid Password');
if show_alert('wrong')=alert_button1 then
          go_item('PASSNAME1');
          :passname1:=null;
          end if;
end;

Answer 1

like i told you before in this posting How to join this two tables
use a union
select username,passname
into :pass.username,:pass.passname1
from Employees
where :pass.username=username
and :pass.passname1=passname
union
select username,passname
into :pass.username,:pass.passname1
from Admin1
where :pass.username=username
and :pass.passname1=passname;