Global variable access behaving differently

Hi There,
I am kind of confused at the way the output of this sql;
select
proc1.get_id(dwg_no, rev_id),
proc1.get_adcn(1) from
table t1,
table2 t2
where
t1.pkey = t2.fkey;
PL/SQL (Proc1)
create package proc1
function get_id(
dwg_no varchar2(10),
rev_id varchar2(4)
function get_adcn(
a number
create package body proc1 ..
--declare/set the global variable
v_adcn_no varchar2(4) := null;
funciton get_id (dwgno, revid) as
v_rev_id varchar2(12) := null;
select 'AB', '55' into v_rev_id, v_adcn_no from dual;
return v_rev_id;
funciton get_adcn (a number) as
return v_adcn_no;
My expectation is th get_id function would be executed and the global variable v_adcn_no would be set to '55' so that this value would be returned when get_adcn fucntion is called.
But it doesn't happen so.(i validated this)
[at times i returns 55, at times it returns null]
Actually i simulated my problem with a simple example.
and I do not want to execute the same sql again when get_adcn function is called.
Any help is highly appreciated.
Regards,
Srini

Thx for your reply,
that does not meet my requirement, bcos there is no guarantee that get_rev_id function would be called first before get_adcn.
But my requirement is i want the rev_id function to be executed first, how would i ensure that.
regards,
Srini

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Message was edited by: Clarke76
Message was edited by: Clarke76

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