The declaration of the type of this expression is incompleteor malformed

Question

error 320 at line 22 column 14
the declaration of the type of this expression is incompleteor malformed
error 0 at line 22,column 4
statement ignored
DECLARE
     v_value VARCHAR2(50);
     v_prod_id varchar2(100);
     v_prod_name VARCHAR2(100);
BEGIN
     v_value:=:product.SIZE_LONG;
     v_prod_id:=:product.prod_id;
     v_prod_name:=:product.prod_name;
     IF v_value is not null then
     insert into product (prod_id,prod_name,DRESS_COMPOSITION,WASH_LABEL_INSTRUCTION,PRESSING_CHARGE,DYEING_CHARGE,
     EXTRA_CHARGE,FINISHING_CHARGE,ITEM_TYPE,TOTAL_FOB,SEASON_YEAR,INTERSTAT_CODE,RETAIL_EURO,WHOLESALE_EURO,
     RETAIL_USD,WHOLESALE_USD,RETAIL_GBP,WHOLESALE_GBP,CATEGORY)
     values (v_prod_id||'-L',v_prod_name||'-Long',:product.DRESS_COMPOSITION,:product.WASH_LABEL_INSTRUCTION,
     :product.PRESSING_CHARGE,:product.DYEING_CHARGE,:product.EXTRA_CHARGE,:product.FINISHING_CHARGE,:product.ITEM_TYPE,
     :product.TOTAL_FOB,:product.SEASON_YEAR,:product.INTERSTAT_CODE,:product.RETAIL_EURO,
     :product.WHOLESALE_EURO,:product.RETAIL_USD,
     :product.WHOLESALE_USD,:product.RETAIL_GBP,:product.WHOLESALE_GBP,:product.CATEGORY);
     LOOP
          insert into product_detail1(prod_id,item_code,item_name,qty,price,unit,avg_rate)
          values (:product_detail1.prod_id,:product_detail1.item_code,:product_detail1.item_name,
          :product_detail1.qty,:product_detail1.price,:product_detail1.unit,:product_detail1.avg_rate);
               exit when NO_DATA_FOUND;
          NEXT_RECORD;
     END LOOP;
elsif
     v_value is  null then
     delete from product where prod_id=(v_prod_id||'-L');
end if;
END;Please Guide
why this errro comes
Thanks And Regards
Vikas Singhal

Answer 1

i did that
     GO_BLOCK('product_detail1');
     FIRST_RECORD;
     LOOP
          insert into product_detail1(prod_id,item_code,item_name,qty,price,unit,avg_rate)
          values (v_prod_id||'-L',:product_detail1.item_code,:product_detail1.item_name,
          :product_detail1.qty,:product_detail1.price,:product_detail1.unit,:product_detail1.avg_rate);
          MESSAGE('KKKKKKKKKKKKK');
               exit when :system.last_record = 'true';
               NEXT_RECORD;
          END LOOP;
AFTER THAT GIVING ERROR
FRM: 40102 Record Must be Deleted Or enetered First
the user requirement is
i) First record is enetered
master and detail
after that he want same record for another record the only change is prod_code
for LARGE,SMALL or SHORT etc.
so i will create a button on form and a field with name size if the user choose the size and press the button then the one record is to insert in master detail and the prod_code is cahnged
please guide
Thanks And Regards
vikas Singhal
Edited by: vikas singhal on Aug 20, 2010 5:59 PM