Question

我有计算HourlyCountPerDay的查询。它工作正常，直到我在st.Occurred上添加Where或Having Clause。查询是

  SELECT DATEADD(hour, DATEDIFF(hour, 0, st.Occurred), 0) AS DateHourStamp,
  COUNT(*) AS TotalCount,at.[Key] 
  FROM  dbo.SomeTable st INNER JOIN             
  dbo.AnotherTable at ON st.ID = at.ID 
  GROUP BY  DATEADD(hour, DATEDIFF(hour, 0, st.Occurred), 0), at.Key 
  ORDER BY  DateHourStamp DESC

以下是结果

DateHourStamp     TotalCount    Key
2/17/15 14:00 PM     41         A22F0D83-544E-4AE9-B426-D12B2F98E239
2/17/15 14:00 PM     42         DD1E803B-76C9-4D74-8E08-CF36FD074A36
2/17/15 13:00 PM     85         DD1E803B-76C9-4D74-8E08-CF36FD074A36
2/17/15 14:00 PM     54         A22F0D83-544E-4AE9-B426-D12B2F98E239

到目前为止哪个是正确的。现在，只要我在下面添加了Having或Where子句

HAVING (DATEADD(hour, DATEDIFF(hour, 0,st.Occurred), 0) BETWEEN CONVERT(DATETIME, '2015-02-14', 102) AND CONVERT(DATETIME, '2015-02-17', 102) )

它将整个计数数字更改为错误计数，将时间更改为00:00。我花了几个多小时？

有什么想法我做错了吗？我正在使用2008r2，但它必须在2005年工作

Answer 1

问题是，除了午夜时分之外，你将失去17日的那一天。

将范围的结尾更改为以下内容：

CONVERT(DATETIME, '2015-02-17 23:00', 102)

Answer 2

以下应该有效。注意日期范围。在您的示例中，所有DateHourStamp都是2/17/15。范围直到＆＃39; 2015-02-17＆＃39; （对于SQL Server datetime是＆＃39; 2015-02-17 00:00:00），他们不会被包括在内。为了包括整天2/17/15，范围应该结束＆＃39; 2015-02-18＆＃39; （2015-02-18 00:00:00）或2015-02-17 23:59:59（或使用＆lt; 2015-02-18）

 SELECT DATEADD(hour, DATEDIFF(hour, 0, st.Occurred), 0) AS DateHourStamp,
      COUNT(*) AS TotalCount,at.[Key] 
      FROM  dbo.SomeTable st INNER JOIN             
      dbo.AnotherTable at ON st.ID = at.ID

    where (DATEADD(hour, DATEDIFF(hour, 0,TL.Occurred), 0) BETWEEN '2015-02-14' AND '2015-02-17'

      GROUP BY  DATEADD(hour, DATEDIFF(hour, 0, st.Occurred), 0), at.Key 
      ORDER BY  DateHourStamp DESC

每小时每天记录记录，在何处/有条款问题

2 个答案: