oracle 存储函数,更新库存

create procedure PRO_update_Goods_group_stock is
  v_min_stock NUMBER(10, 2);
  v_gg_stock  NUMBER(10, 2);
  v_goods_no  number;
  v_sum_cost  NUMBER(10, 2);
begin
  for g_goods_no in (select ggi.goods_no
                       from goods_group_item ggi
                      where ggi.is_delete = 'N'
                      GROUP by ggi.goods_no) loop
    select count(*)
      into v_goods_no
      from goods_no_stock gn
     where gn.goods_no = g_goods_no.goods_no;
    if v_goods_no > 0 then
      continue;
    end if;

    --查询组合子商品的库存再除以绑定的数量 取最小值    gg主商品 g子商品
    select min(TRUNC(g.available_stock /
                     decode(gg1.group_goods_amount,
                            0,
                            1,
                            gg1.group_goods_amount),
                     0))
      into v_min_stock
      from goods_group_item gg1, goods g, goods gg
     where gg1.goods_no = g_goods_no.goods_no
       and gg1.is_delete = 'N'
       and gg.goods_id = gg1.goods_id
       and gg.is_delete = 'N'
       and g.goods_id = gg1.GROUP_GOODS_ID;

    --计算成本价格    gg主商品 g子商品
    select trunc(sum(g.cost_price * gg1.group_goods_amount), 2)
      into v_sum_cost
      from goods_group_item gg1, goods g, goods gg
     where gg1.goods_no = g_goods_no.goods_no
       and gg1.is_delete = 'N'
       and gg.goods_id = gg1.goods_id
       and gg.is_delete = 'N'
       and g.goods_id = gg1.GROUP_GOODS_ID;

    update goods
       set available_stock = v_min_stock, COST_PRICE = v_sum_cost
     where goods_no = g_goods_no.goods_no
       and is_delete = 'N';
    commit;
  end loop;

  --下架问题组合码
  insert into sys_user_message
    (MESSAGE_ID,
     PRODUCT_CODE,
     TARGET_MODUL_ID,
     MESSAGE_BODY,
     MESSAGE_STAGE,
     IS_DELETE)
    select sys_user_message_seq.nextval,
           p.product_code,
           254,
           '商品：'||p.product_code||' 没有维护组合码',
           '',
           'N'
      from product p
     where not exists (select 1
              from goods_group_item ggi
             where ggi.goods_no = p.product_code)
       and p.is_delete = 'N'
       and p.is_onsale = 'Y'
       and p.product_code like 'A%';

     update product p set p.is_onsale = 'N'
     where not exists (select 1
              from goods_group_item ggi
             where ggi.goods_no = p.product_code)
      and p.is_delete = 'N'
       and p.is_onsale = 'Y'
       and p.product_code like 'A%';

 commit;
end;

select *

      from goods_no_stock gn
     where gn.goods_no in  (select ggi.goods_no
                       from goods_group_item ggi
                      where ggi.is_delete = 'N'
                      GROUP by ggi.goods_no);

select  * from goods g where  g.GOODS_NO='02-00056';

  select  * from goods g where g.GOODS_NO='';

select  * from goods g where g.goods_no='';

select gn.goods_no

      from goods_no_stock gn;

goods_no_stock:库存同步黑名单表,在这张表中的数据,都不会进行相关的更新操作