I want to use a parameter againts "IN" operator in the report, but failed!

Question

Hi all,
i had a report query parameter like this;
" where customers IN :u_customer_list "
when i assign single value to :u_customer_list, it runs report perfectly, but whenever i give more than one value to same variable, the report previewer comes out without any data, ( a blank report)
how can i successfully use a list with "IN" operator

Answer 1

Thanks Mark,
I had already tried what you suggest like where customers in (:u_customer_list),
:u_customer_list is character(500) report parameter,
1) whenever i pass list of number without single quotes seperated with comma, it runs blank,
2) whenever i pass list of number enclosed in single quotes and seperated with comma, it runs blank,
3) it only returns report with data when i pass only a single value without single quotes, its work
plz guide, is there any possibility to use a record variable instead of :u_customer_list, if possible then how, give me hints,
if i store the list in a temporary table in database and run a subquery to retreive values , it works fully and correctly but it is not ideal and not easy to handle fully
waiting