Question

当用户为他的产品付款时，我会向PaymentTBL添加付款记录，现在我想知道每月所有首笔付款的数量。我构建了这个查询：

   SELECT Count(*) as OptIn, Month(StartDate) As MonthNum, Year(StartDate) As YearNum
  FROM [dietdb].[dbo].[PaymentsTBL]

  group by Month(StartDate), Year(StartDate)

但它并没有给我我想要的东西，因为我只需要知道那些在本月开始使用应用程序的人，而不是那些重新发布/续订付款的人。

有没有什么好方法可以实现这个目标？

以下是PaymentTBL结构：

CREATE TABLE [dbo].[PaymentsTBL](
    [AutoNo] [int] IDENTITY(1,1) NOT NULL,
    [PersonID] [nvarchar](50) NOT NULL,
    [UDID] [nvarchar](50) NULL,
    [StartDate] [datetime] NULL,
    [Duration] [float] NULL CONSTRAINT [DF_PaymentsTBL_Duration]  DEFAULT ((0)),
    [EndDate] [datetime] NULL,
    [Points] [float] NULL CONSTRAINT [DF_PaymentsTBL_Points]  DEFAULT ((0)),
    [Cost] [float] NULL CONSTRAINT [DF_PaymentsTBL_Cost]  DEFAULT ((0)),
    [Currency] [int] NULL CONSTRAINT [DF_PaymentsTBL_Currency]  DEFAULT ((0)),
    [TypeID] [int] NULL CONSTRAINT [DF_PaymentsTBL_TypeID]  DEFAULT ((2)),
    [IsActive] [bit] NULL CONSTRAINT [DF_PaymentsTBL_IsActive]  DEFAULT ((0)),
    [InsertDate] [datetime] NULL CONSTRAINT [DF_PaymentsTBL_InsertDate]  DEFAULT (getdate()),
    [InsertUser] [nvarchar](50) NULL,
    [UpdateDate] [datetime] NULL CONSTRAINT [DF_PaymentsTBL_UpdateDate]  DEFAULT (getdate()),
    [UpdateUser] [nvarchar](50) NULL,
    [PayBy] [int] NULL CONSTRAINT [DF_PaymentsTBL_PayBy]  DEFAULT ((1)),
 CONSTRAINT [PK_PaymentsTBL] PRIMARY KEY CLUSTERED 
(
    [AutoNo] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

我需要的数据样本：

OptIn   MonthNo YearNo
47  1   2015
56  2   2015
72  3   2015
61  4   2015
74  5   2015
43  6   2015
154 7   2015
180 8   2015
190 9   2015
139 10  2015
169 11  2015
117 12  2015
147 1   2016
137 2   2016
135 3   2016
154 4   2016
141 5   2016
109 6   2016
162 7   2016
75  8   2016

Answer 1

试试这个

HTML
<div id="id">
     <span>hello</span>
     <br>
     <a href="">hover me</a> 
  </div>

Answer 2

我认为您可以使用row_number（）来确定某人的第一笔付款，然后按月计算，例如：

select
       Month(StartDate) MonthNo
     , Year(StartDate) YearNo
     , count(case when rn = 1 then 1 end) as OptIn
     , count(*) as count_all
from (
    select
      *
      , row_number() over(partition by PersonID order by StartDate) as rn
     from PaymentsTBL
    ) d
group by
       Month(StartDate) 
     , Year(StartDate)

Answer 3

您可以尝试此查询： -

SELECT Count(*) as OptIn, Month(StartDate) As MonthNum, Year(StartDate) As YearNum
FROM [dietdb].[dbo].[PaymentsTBL]
WHERE Month(StartDate) = MONTH(GETDATE())
AND Year(StartDate) = YEAR(GETDATE())
group by Month(StartDate), Year(StartDate)

希望这有帮助。

Answer 4

我想你想要每个月的第一笔付款记录。

id列是表

的主键

SELECT min(id) as OptIn, Month(StartDate) As MonthNum, Year(StartDate) As YearNum
FROM [dietdb].[dbo].[PaymentsTBL]
group by Month(StartDate), Year(StartDate)

获取SQL Server中的第一个记录的计数

4 个答案: