Manual Tabular Form - APEX_ITEM

Question

Hello All,
I'm trying to build my own custom tabular form. I'm using a PL/SQL to return the query, but am getting "FROM not found where expected".
But the code for declaring the APEX_ITEM is correct.
I've been working on this for 2 days and still have not managed to get up a custom manual tabular form. Thanks for any, I mean any suggestions.
I maybe be corrected, but this may also be simply a custom design/ apex_items on the go.
My goal is to acheive the following on the go
Slot 1 - LOV - LOV
Slot 2 - LOV - LOV
Slot n - LOV - LOVHere is what I see in the debug:
0.04: query could not be parsed:
SELECT  apex_item.hidden (31, NULL) apex_item.text (32,1,80,100,'style="width:170px" readonly="readonly"','f32_' LPAD (9900 + 2, 4, '0')), apex_item.hidden (33, NULL) disk_pos_name,
                       apex_item.select_list_from_lov(34,1,'DISK_TYPE_LOV') disk_id,
                       apex_item.select_list_from_lov(35,1,'RAID_LOV') raid,
                       apex_item.select_list_from_lov(36,1,'SLOT_STATUS_LOV') slot_status
             FROM DUAL  union all SELECT  apex_item.hidden (31, NULL) apex_item.text (32,1,80,100,'style="width:170px" readonly="readonly"','f32_' LPAD (9900 + 2, 4, '0')), apex_item.hidden (33, NULL) disk_pos_name,
                       apex_item.select_list_from_lov(34,1,'DISK_TYPE_LOV') disk_id,
                       apex_item.select_list_from_lov(35,1,'RAID_LOV') raid,
                       apex_item.select_list_from_lov(36,1,'SLOT_STATUS_LOV') slot_status
             FROM DUAL 
failed to parse SQL query:
ORA-00923: FROM keyword not found where expectedHere is the PL/SQL block I'm using:
declare
v_count number;
v_name varchar2(100);
v_retstr VARCHAR2(8000);
begin
  select disk_slots into v_count from ori_inventory where inventory_id = '142'; --tester value
  v_name := '';
  for i in 1 .. v_count loop
   v_name := '''Slot '|| i ||'''';
   v_retstr := v_retstr ||
    'SELECT  apex_item.hidden (31, NULL) ' ||
                     'apex_item.text (32,'|| 1 ||',80,100,''style="width:170px" readonly="readonly"'',''f32_'' LPAD (9900 + 2, 4, ''0'')), ||
                      apex_item.hidden (33, NULL) disk_pos_name,
                       apex_item.select_list_from_lov(34,1,''DISK_TYPE_LOV'') disk_id,
                       apex_item.select_list_from_lov(35,1,''RAID_LOV'') raid,
                       apex_item.select_list_from_lov(36,1,''SLOT_STATUS_LOV'') slot_status
             FROM DUAL ';
   if i < v_count then v_retstr := v_retstr||' union all '; end if;
  end loop;
  return v_retstr;
  --dbms_output.put_line(v_retstr);
end;

Answer 1

Is there a missing concatenate operator here:
'f32_' LPAD (9900 + 2, 4, '0')
Scott