Mysql where子句中断计算查询

不知是否有人能指出我下面代码中的错误。我有一个mysql查询，它按月显示销售线索，然后计算转换为销售额的百分比。如果我在其中添加where子句，它会打断total列，因为它的输出与Comms列相同

  Select
  q.*,
  ROUND(100 * Comms / Total, 2) As Conversion,
  If(q.Adviser Is Null, 1, 0) As remove
From
  (Select
      a.ContactFullName As Adviser,
      SUM(YEAR(b.CaseDate) = 2013 AND Month(b.CaseDate) = 1) AS Jan,
      SUM(YEAR(b.CaseDate) = 2013 AND Month(b.CaseDate) = 2) As Feb,
      SUM(YEAR(b.CaseDate) = 2013 AND Month(b.CaseDate) = 3) As Mar,
      SUM(YEAR(b.CaseDate) = 2013 AND Month(b.CaseDate) = 4) As Apr,
      SUM(YEAR(b.CaseDate) = 2013 AND Month(b.CaseDate) = 5) As May,
      SUM(YEAR(b.CaseDate) = 2013 AND Month(b.CaseDate) = 6) As Jun,
      SUM(YEAR(b.CaseDate) = 2013 AND Month(b.CaseDate) = 7) As Jul,
      SUM(YEAR(b.CaseDate) = 2013 AND Month(b.CaseDate) = 8) As Aug,
      SUM(YEAR(b.CaseDate) = 2013 AND Month(b.CaseDate) = 9) As Sep,
      SUM(YEAR(b.CaseDate) = 2013 AND Month(b.CaseDate) = 10) As Oct,
      SUM(YEAR(b.CaseDate) = 2013 AND Month(b.CaseDate) = 11) As Nov,
      SUM(YEAR(b.CaseDate) = 2013 AND Month(b.CaseDate) = 12) As Dece,
      Count(b.CaseID) As Total,
      Sum(Case When Year(b.StatusSubmittedDate) = 2013 Then 1 Else 0
      End) As Comms

    From
      tblcontacts a Inner Join

无WHERE子句输出

Total - Comms - Conversion
479   -  148  - 30.9%

Total - Comms - Conversion
148   -  148  - 100%

输出WHERE子句

Total - Comms - Conversion
479   -  148  - 30.9%

Total - Comms - Conversion
148   -  148  - 100%

我搞不懂为什么会发生这种事

---

亲切问候

更新：

我重写了你的整个问题：

Select
  q.*,
  totals.total,
  ROUND(100 * Comms / totals.total, 2) As Conversion
  If(q.Adviser Is Null, 1, 0) As remove
From
  (Select
      a.ContactFullName As Adviser,
      Sum(Month(b.CaseDate) = 1) As Jan,
      Sum(Month(b.CaseDate) = 2) As Feb,
      Sum(Month(b.CaseDate) = 3) As Mar,
      Sum(Month(b.CaseDate) = 4) As Apr,
      Sum(Month(b.CaseDate) = 5) As May,
      Sum(Month(b.CaseDate) = 6) As Jun,
      Sum(Month(b.CaseDate) = 7) As Jul,
      Sum(Month(b.CaseDate) = 8) As Aug,
      Sum(Month(b.CaseDate) = 9) As Sep,
      Sum(Month(b.CaseDate) = 10) As Oct,
      Sum(Month(b.CaseDate) = 11) As Nov,
      Sum(Month(b.CaseDate) = 12) As Dece,
      Count(b.StatusSubmittedDate) As Comms

    From
      tblcontacts a Inner Join
      tblcases b On a.ContactID = b.ContactAssignedTo 
      WHERE Year(b.StatusSubmittedDate) = 2013
    Group By
      a.ContactFullName With Rollup) q
    inner join (select  a.ContactFullName As Adviser, count(*) as total from
    tblcontacts a Inner Join
      tblcases b On a.ContactID = b.ContactAssignedTo 
      WHERE Year(b.StatusSubmittedDate) = 2013
      group by Adviser
      )totals on q.Adviser = totals.Adviser

原始答案：

要进行多次计数，您可以这样解决：

      Count(b.CaseID) As Total,
      SUM(CASE WHEN YEAR(b.StatusSubmittedDate) = 2013 THEN 1 ELSE 0 END) As Comms,

但这是：

      ROUND(100 * Count(b.StatusSubmittedDate) / Count(b.CaseID),

不起作用，因为这个计算必须在以后进行

Select
  q.*,
  ROUND(100 * Comms / Total, 2) As Conversion,
  If(q.Adviser Is Null, 1, 0) As remove
From
  (Select
      a.ContactFullName As Adviser,
      Sum(Month(b.CaseDate) = 1 and year(b.CaseDate) = 2012) As Jan,
      ... Dec,
      Count(b.CaseID) As Total,
      SUM(CASE WHEN YEAR(b.StatusSubmittedDate) = 2013 THEN 1 ELSE 0 END) As Comms
    From
      tblcontacts a Inner Join
      tblcases b On a.ContactID = b.ContactAssignedTo 
    Group By
      a.ContactFullName With Rollup) q

---

您好，谢谢您的输入，我确实尝试过，但抛出了一个错误“您的SQL语法有错误；”@gary更新了我的答案，应该是正确的，现在开始工作。@tombom-再次感谢您，使用您的代码示例，如果我更改了comms列的年份，这很好，但是total列和所有月份值保持不变，无论年份如何。如果我输入2012年或2013年，总数是相同的479？再次感谢……非常感谢您宝贵的意见。如果我将“CASE WHEN”添加到现有查询中，它将显示正确的总数，但无论我输入什么年份，它都会显示相同的总数。如果我输入2012或2112，则输出相同-如果我使用第二个建议，则在“字段列表”中抛出“#1054-未知列”b.StatusSubmittedDate”。我试着把线移来移去，但没有成功。再次感谢..你的第一期是指每月的总数？当然，您必须将这些行更改为

SUM（年（b.CaseDate）=2013年，月（b.CaseDate）=1）作为一月，

。关于你的第二个问题-你试过我的答案的最新版本了吗？在外部查询中，我在转换时写下了

ROUND（100*Comms/Total，2）

@gary更新了我的答案，重写了你的整个查询。非常感谢你在这方面花费的时间，我在外部查询中尝试了你的答案的最新版本，只是准确地复制到了查询窗口中。它工作得很好，但我被困在总计栏中，不管我查询的是哪一年，它总是显示479。再次感谢..发现了一个小错误，您必须在内部和外部查询中同时添加where子句。请使用重写的查询重试。