Calling function in data model

Question

Hello All,
I am having 1 issues in a report.
Here is what i am doing.
I created a type of varchar2 and created a function which will return me the output of type.
this runs fine in sqlplus but when i put the same query in data model and join another set of tables,the data model is not able to determine the output of the colums.It shoes me a question mark and not the varchar field.
Due to this my generation to xml is failing.
Pls help
Thanks
Saurabh

Answer 1

TYPE CREATED.
create or replace type str2tblType as table of varchar2(4000);
FUNCTION CREATED.
create or replace
function str2tbl
(date_from in number,date_to in number,v_inter number)
return str2tblType
as
d varchar2(100);
l_data str2tblType := str2tblType();
v_date_from varchar2(100);
v_date_to varchar2(100);
begin
v_date_from := date_from/3600;
v_date_to := date_to/3600;
IF INSTR(v_date_from,'.')=0 THEN
v_date_from := v_date_from||':00';
ELSE
v_date_from := SUBSTR(v_date_from,1,INSTR(v_date_from,'.')-1)||':'||(v_date_from - SUBSTR(v_date_from,1,INSTR(v_date_from,'.')-1)) * 60 ;
END IF;
IF INSTR(v_date_to,'.')=0 THEN
v_date_to := '0'||v_date_to||':00';
ELSE
v_date_to := SUBSTR(v_date_to,1,INSTR(v_date_to,'.')-1)||':'||(v_date_to - SUBSTR(v_date_to,1,INSTR(v_date_to,'.')-1)) * 60 ;
END IF;
d := v_date_from;
WHILE d!=v_date_to
loop
l_data.extend;
d:= to_char(to_date(d,'HH24:MI')+v_inter/60/24,'HH24:MI');
l_data(l_data.count) :=d;
end loop;
return l_data;
end;
SELECT QUERY:
select * from TABLE(cast( str2tbl(36000,21600,20) as str2TblType ) )