Error in editing a report region

Question

I have a report region (SQL Query PL/SQL function body returning SQL query).
When I try to save the region source, I got the following error:
1 error has occurred
* Function returning SQL query: Query cannot be parsed within the Builder. If you believe your query is syntactically correct, check the generic columns checkbox below the region source to proceed without parsing.
(ORA-01403: no data found)
Note that in the following region source, if I replace :P1_ITEM with 'One:Two:Three', I
did not get any error when I saved the report:
declare
l_sql varchar2(32676);
l_vc_arr2 HTMLDB_APPLICATION_GLOBAL.VC_ARR2;
begin
l_sql := 'select x, y '
l_vc_arr2 := htmldb_util.string_to_table(:P1_ITEM);
if l_vc_arr2(1) > 0 then
l_sql := l_sql || ', z';
end if;
l_sql := l_sql || ' where x.c1=y.c1 '
if l_vc_arr2(1) > 0 then
l_sql := l_sql || ' and z.c1=x.c1 and z.c2 in (';
l_sql := l_sql || l_vc_arr2(1);
for t in 2..l_vc_arr2.count LOOP
l_sql := l_sql || ',' || l_vc_arr2(t);
END LOOP;
l_sql := l_sql || ')';
end if;
l_sql := l_sql || ';';
return l_sql;
end;
Can someone help?
Thanks in advance.

Answer 1

Try adding these two bold lines:
declare
l_sql varchar2(32676);
l_vc_arr2 HTMLDB_APPLICATION_GLOBAL.VC_ARR2;
begin
l_sql := 'select x.c1, x.c3, y.c4 from x, y'
l_vc_arr2 := htmldb_util.string_to_table(:P1_ITEM);
IF l_vc_arr2.count() > 0 THEN
if l_vc_arr2(1) > 0 then
l_sql := l_sql || ', z';
end if;
l_sql := l_sql || ' where x.c1=y.c1 '
if l_vc_arr2(1) > 0 then
l_sql := l_sql || ' and z.c1=x.c1 and z.c2 in (';
l_sql := l_sql || l_vc_arr2(1);
for t in 2..l_vc_arr2.count LOOP
l_sql := l_sql || ',' || l_vc_arr2(t);
END LOOP;
l_sql := l_sql || ')';
end if;
END IF;
l_sql := l_sql || ';';
return l_sql;
end;
Sergio