sqlserver 脚本 多条记录遍历

临时表方式实现多条记录遍历

declare @oper_cart_item_id bigint;
 declare @oper_cart_id bigint;
 declare @the_last_changed_date datetime;
 declare @oper_cust_id int;

     select * , 0 as flag into #shoppingcart_temp from deleted;
    while exists (select top 1 1 from #shoppingcart_temp t where t.flag = 0 )
    begin

    select top 1
    @oper_cart_item_id = cart_item_id,@oper_cart_id = cart_id,
    @oper_cust_id = cust_id,@the_last_changed_date = last_changed_date
    from  #shoppingcart_temp where flag = 0 ;

    if @oper_cart_item_id is not null and @oper_cart_item_id <> 0 and left(@oper_cart_id,1) = ''
    begin
       exec proc_sqlser_insertqueue @oper_cart_id,@oper_cart_item_id, @the_last_changed_date, @oper_cust_id, '';
    end

    update  #shoppingcart_temp  set  flag = 1 where cart_item_id = @oper_cart_item_id
  end

游标方式实现多条记录遍历

declare @oper_cart_item_id bigint;
 declare @oper_cart_id bigint;
 declare @the_last_changed_date datetime;
 declare @oper_cust_id int;

    declare shoppingcart_cursor cursor for select cart_item_id,cart_id,cust_id,last_changed_date from deleted;

    open shoppingcart_cursor

    fetch next from shoppingcart_cursor into @oper_cart_item_id,@oper_cart_id, @oper_cust_id,@the_last_changed_date

    while (@@fetch_status=0)
    begin

        if @oper_cart_item_id is not null and @oper_cart_item_id <> 0 and left(@oper_cart_id,1) = ''
        begin
           exec proc_sqlser_insertqueue @oper_cart_id,@oper_cart_item_id, @the_last_changed_date, @oper_cust_id, '';
        end
        fetch next from shoppingcart_cursor into @oper_cart_item_id,@oper_cart_id, @oper_cust_id,@the_last_changed_date
    end
    close shoppingcart_cursor
    DEALLOCATE shoppingcart_cursor