Question

我想为我的SQL披萨餐厅数据库创建一个“销售报告”。当我尝试使用sum（order_amount）运行SELECT查询时，该列未格式化。我正在使用Oracle SQL。这是代码：

column order_amount heading "Order Amount" format '$9,999,999.00';
select order_id, count(order_id) as "Number of Orders", sum(pizza_quantity) as "Pizzas Sold", 
sum(order_amount) as "Total Profit"
from order_details group by order_id;

这是输出：

SQL> select order_id, count(order_id) as "Number of Orders",sum(pizza_quantity) as "Pizzas Sold",
  2  sum(order_amount) as "Total Profit"
  3  from order_details group by order_id;

  Order ID Number of Orders Pizzas Sold Total Profit
---------- ---------------- ----------- ------------
         1                2           5          105
         6                1           2           20
         2                2           6          165
         4                2          12          130
         5                2           6           80
         8                1           7          140
         3                2           4           80
         7                1           6          120
         9                1           8          120
        10                1           9          270

10 rows selected.

有什么方法可以显示以货币格式设置的“总利润”列？

Answer 1

您可以尝试使用to_char()。

...
to_char(sum(order_amount), '$9,999,999.00')
...

Answer 2

您可以使用数字格式建模元素作为FML9,999.99函数的第二个自变量$9G990D00或to_char，如以下示例所示：

SQL> alter session set nls_currency='$';
SQL> alter session set NLS_NUMERIC_CHARACTERS = '.,';
SQL> with tab(order_ID,order_amount) as
  (
    select 1,255.51 from dual union all
    select 1,750.33 from dual union all    
    select 6,420.39 from dual union all
    select 2,790.00 from dual union all
    select 2,375.05 from dual    
  )
  select to_char(sum(order_amount),'FML9,999.99') as "Total Profit" 
    from tab
   group by order_ID  
  union all
  select to_char(sum(order_amount),'$9G990D00') as "Total Profit" 
    from tab
   group by order_ID

Total Profit
$1,005.84
$420.39
$1,065.05
 $1,005.84
   $420.39
   $1,065.05

Rextester Demo

Answer 3

如果您的问题是关于SQL * Plus列格式的，则问题是您为名为order_amount的列定义了一种格式，但是在查询中它被称为"Total Profit"：

column order_amount heading "Order Amount" format '$9,999,999.00'

如果更改查询以使所需的列命名为order_amount，则将使用定义的格式：

select order_id, count(order_id) as "Number of Orders", sum(pizza_quantity) as "Pizzas Sold"
     , sum(order_amount) as order_amount
from   order_details
group by order_id;

（顺便说一下，除非您的成本为零，否则我怀疑订单总额是否全部为利润，在这种情况下，我想投资于您的比萨饼业务。）

将数字格式化为货币金额

3 个答案: