Using type for function in sql

Question

CREATE OR REPLACE
type InListType_number as table
of number
CREATE OR REPLACE function in_list( p_patseq in number ) return InListType_number
as
l_number number default p_patseq ;
l_data InListType_number := InListType_number();
begin
loop
exit when l_number is null;
end loop;
return l_data;
end;
SELECT p.pat_seq, p.diagnosis_type, ct.code_value || ' ' || p.alt_description as diagnosis_desc
FROM patient_diagnosis p,
     (select * from code_set , code_set_type
     where code_set.code_set_type_seq =code_set_type.code_set_type_seq) ct
WHERE p.enterprise_seq = (select enterprise_seq from org_lookup where organization_seq = 0 and rownum = 1)
and p.diagnosis_code_seq = ct.code_set_seq(+)
and (p.diagnosis_type LIKE 'A%' OR p.diagnosis_type LIKE 'W%')
and p.PAT_SEQ IN (select /*+ CARDINALITY (t ) */* from table( cast( in_list (list of pat_seq here like 12345,12344,345666,etc over 1000 counts of pat_seqs)
as InListType_number ) ) t)
this gives me
ORA-00939: too many arguments for function
can someone advise? thanks

Answer 1

Well IN_LIST takes a single parameter of type NUMBER and you are passing in
12345,12344,345666which is patently multiple numbers. I think what you want to do is pass in a string ' 12345,12344,345666' and have a function TO_LIST() that parses the string and spits out numbers. Fortunately for you John Spencer has posted Re: Splitting the values in one column.
Cheers, APC