Menu parameter, display text and filter by ID

Question

Is it possible with a parameter of type menu to display the text that has meaning to the user
But when filtering in my query send the ID's of the items the user selected in the menu?
For example I have a catalog with 50 reason descriptions in my DB, every reason description has an ID
So I display the 50 reason descriptions so that the user selects whatever he wants
When he runs the report how can I get the ID's of the reason descriptions he selected?
Thanks and Regards

Answer 1

for All option:
select description, id from table
union all
select "All", -999 from dual
in the query SQL:
where
colum1 = decode(:parameter1,-999,colum1,:parameter1)
for Multiple selection:
colum1 in (decode(:parameter1,-999,colum1,:parameter1) )
example to create a report:
1.create a list:
select rownum || '-' || t.tname tname, rownum tnum from tab t
union all
select 'All' tname, -999 tnum from dual
order by tnum
2. create a parameter using above list
3. create a data model with following sql:
select rownum || '-' || t.tname tname, rownum tnum from tab t
where rownum in ( decode(:PM_doc_id,-999,rownum,:PM_doc_id))
4. generate the layout
5.view this report to verify it.