Check that at least one variable is set

Question

I have 10 variables/parameters and i want to ensure that at least one of those is not empty/null. What is the best way to check that?
Example of parameters:
p_item_category1 varchar2,
p_item_category2 varchar2,
p_item_category3 varchar2,
p_item_category4 varchar2,
p_item_category5 varchar2,
p_item_category6 varchar2,
p_item_category7 varchar2,
p_item_category8 varchar2,
p_item_category9 varchar2,
p_item_category10 varchar2
Should the best way be as:
if (p1 is not null) or
(p2 is not null) or
(p10 is not null) then
--at least one parameter has value, ok,
else
--all parameters are empty, give error message
This code looks long, is there cleaner* better way to achieve the same?
Maybe there is a system function "AtLeastOnInSetIsNotNull", something like
if AtLeastOnInSetIsNotNull(p1,p2,..,p10) then...
That would be more handful.

Answer 1

Seems like coalesce is even better, thx.
declare
p1 varchar2(1) := null;
begin
dbms_output.PUT_LINE(coalesce(null,'1',null,'2'));-- outputs: 1
if coalesce(null,p1,null,null) is null then
dbms_output.PUT_LINE('all parameters are null');--outputs: all parameters are null
end if;
end;