Problem using comma separated list with nested table element

Question

Hi,
I have a comma separated list like that:
H23004,H24005,T7231,T8231,T9231And want to create a function which is creating a where clause for each element with an output like that:
UPPER('H23004') IN (UPPER(charge))
OR UPPER('H23005') IN (UPPER(charge))
OR UPPER('T7231') IN (UPPER(charge))
OR UPPER('T8231') IN (UPPER(charge))
OR UPPER('T9231') IN (UPPER(charge))Here is my test function which doesn't work correctly:
create or replace function FNC_LIST_TO_WHERE_CLAUSE(v_list in VARCHAR2) return varchar2 is
-- declaration of list type
TYPE batch_type IS TABLE OF pr_stamm.charge%TYPE;
-- variable for Batches
v_batch batch_type := batch_type('''' || replace(v_list,',',''',''') || '''');
return_script varchar2(1000);
BEGIN
-- loop as long as there are objects left
FOR i IN v_batch.FIRST .. v_batch.LAST
LOOP
   --DBMS_OUTPUT.PUT_LINE(offices(i));
   -- create where clause
   IF i = 1 THEN
     return_script := 'UPPER(' || v_batch(i) || ') IN (UPPER(charge))';
   ELSE
     return_script := return_script || ' OR UPPER(' || v_batch(i) || ') IN (UPPER(charge))';
   END IF;
END LOOP;
return (return_script);
end;The out put looks like that:
UPPER('H23004','H24005','T7231','T8231','T9231') IN (UPPER(charge))I have no idea what I do wrong? It calculates the amount of array element wrong! (v_batch.LAST should be 5.)
v_batch.FIRST = 1
v_batch.LAST = 1
Regards,
Tobias

Answer 1

try this....
declare
text varchar2(1000) := 'H23004,H24005,T7231,T8231,T9231';
v_where varchar2(1000);
begin
text := text||',';
while instr(text,',') <> 0
loop
v_where := v_where || 'UPPER('''||substr(text,1,instr(text,',',1)-1)||''' IN (UPPER(charge)) OR ';
     text := substr(text,instr(text,',',1)+1);
end loop;
v_where := substr(v_where,1,length(v_where)-3);
dbms_output.put_line(v_where);
end;
convert this one into function ...