需要有关SQL Server存储过程的格式输出的帮助

Question

需要有关SQL Server存储过程的格式输出的帮助。

我想在每月30日的每一天循环检查发票金额。

这是我的代码

Declare @SDate Date
Declare @EDate Date

SET @SDate = '2014-11-01'
SET @EDate = '2014-11-30'

WHILE @SDate <= @EDate
BEGIN 
   --print @SDate
   select 
      (select sum(amt) 
       from VEntry
       where ACode = '111111' and Source = 'AP_DOC_AMT' 
         and VDate = @SDate) as INV,
     (select sum(AFDisAmt) 
      from DO_Item
      where Client_No = '999999'
        and DO_Date = @SDate) as INV_T 

   SET @SDate = DATEADD(D,1,@SDate)
END    

此代码正在运行，但输出显示每天的标题。

我想只显示一个标题作为正常输出。

Answer 1

根本不需要任何循环。只需使用BETWEEN获取所有日期的数据，并将结果与​​FULL OUTER JOIN一起加入：

Declare @SDate Date
Declare @EDate Date
SET @SDate = '2014-11-01'
SET @EDate = '2014-11-30'

SELECT COALECE(VEntries.VDate, DO_Items.DO_Date) AS Date
       VEntries.Amount,
       DOData.Amount
FROM
    (select VDate, 
            sum(amt) AS Amount
    from VEntry
    where ACode = '111111' 
    and Source = 'AP_DOC_AMT' 
    and VDate BETWEEN @SDate AND @EDate
    group by VDate) AS VEntries
FULL OUTER JOIN
    (select DO_Date,
            sum(AFDisAmt) AS Amount
    from DO_Item
    where Client_No = '999999'
    and DO_Date BETWEEN @SDate AND @EDate
    group by DO_Date) AS DO_Items
ON VEntries.VDate = DO_Items.DO_Date

Answer 2

如果你有一个日期值表（一种方法是使用下面的递归cte），你可以left join和group by来获得你想要的结果。

Declare @SDate Date
Declare @EDate Date
SET @SDate = '2014-11-01'
SET @EDate = '2014-11-30'

;with cte 
as
( select @SDate as iDate 
  UNION ALL
  select dateadd(day,1,iDate) as iDate from 
  cte
  where iDate < @EDate
) 
select iDate as Date, ISNULL(sum(amt),0) as INV , ISNULL(sum(AFDisAmt),0) as INV_T 
from cte
left join VEntry 
on cte.iDate = VEntry.VDate
and ACode = '111111' and Source = 'AP_DOC_AMT'
left join DO_Item 
on cte.iDate = DO_Item.DO_Date
and Client_No = '999999'
group by cte.iDate