MySQL中自定義公式的語法

Question

我有一個可以正常工作的mysql查詢，但我需要向其中添加三個平均值/百分比公式。 該查詢用於呼叫中心指標。

我真正的問題是我的第三個指標missed_call_score 。 我需要做這樣的事情：

(missed calls / total talk time) * (average calls per CSR / total calls ) * 100 。 現在，我在下面的查詢中錯過了通話，通話總時間和通話總次數，但是為了獲得每個csr的平均通話次數，我需要取出最高和最低的總通話次數（在15個CSR中），因此我m剩余13個。 我需要將這些總數相加，並假定除以13，這將在除去最高/最低值后得出每個CSR的平均值。

我的問題是如何將其合並到查詢中？

這是我現有查詢的必要部分：

SELECT 
 , extension
 , Total_Outbound+Total_Missed+Total_Received AS Total_Calls
 , Total_Missed
 , Total_Talk_Time_minutes

 /*Here I'll add average_TT_day, average_TT_call, missed_call_score*/

FROM (
  SELECT 
  , c.extension  
  , sum(if(Answered = 1,0,1)) AS Total_Missed     
  , round(sum(Duration) / 60,2) AS Total_Talk_Time_minutes

  /*Here I'll have my new averages and score formula */

    FROM ambition.session a
    INNER JOIN ambition.callsummary b ON a.NOTABLECALLID = b.NOTABLECALLID
  WHERE b.ts between curdate() - interval 5 day and now()

  GROUP BY c.extension  
 ) ;

因此，我需要將我的三個指標添加到我留下評論的select語句中。 最重要的是，對於未接來電分數，它需要看起來像這樣：

(Total_Missed/Total_Talk_Time_Minutes) * ((SUM(all total calls - highest and lowest) / 13) / sum of total_calls) * 100

顯然，這是偽代碼，並非完全正確，而是一個主意。

最后，這是我應該得到的示例：

extension | Total calls | missed calls | total talk time | missed call score
----------------------------------------------------------------------------
1               10              5               20              6.5     
2               8               2               15              3.4             
3               5               3               10              7.8
4               2               2               5               10.4

Formulas:

Total call sum = 25
Total call sum without high and low = 13
average calls per CSR = (13/2) = 6.5

extension 1 = (5/20) * (6.5/25) * 100
extension 2 = (2/15) * (6.5/25) * 100
extension 3 = (3/10) * (6.5/25) * 100
extension 4 = (2/5) * (6.5/25) * 100

Answer 1

無法訪問您的數據，這很難。 但是這樣的事情應該為您指明正確的方向：

SELECT TOP 95 PERCENT
 , extension
 , Total_Outbound+Total_Missed+Total_Received AS Total_Calls
 , Total_Missed
 , Total_Talk_Time_minutes
 , banana.Total_Talk_Time_minutes / SUM(banana.[row]) AS average_TT_call
 , (Total_Missed / Total_Talk_Time_minutes) * ([CallsPerExt].county / SUM([banana.row])) AS [Missed Call Score]

 /*Here I'll add average_TT_day, average_TT_call, missed_call_score*/

FROM (
  SELECT TOP 95 PERCENT
  , c.extension  
  , sum(if(Answered = 1,0,1)) AS Total_Missed     
  , round(sum(Duration) / 60,2) AS Total_Talk_Time_minutes
  , 1 AS [row]

  /*Here I'll have my new averages and score formula */

    FROM ambition.session a
    INNER JOIN ambition.callsummary b ON a.NOTABLECALLID = b.NOTABLECALLID
  WHERE b.ts between curdate() - interval 5 day and now()

  GROUP BY c.extension  
  ORDER BY round(sum(Duration) / 60,2) --Total_Talk_Time_minutes
 ) AS banana 
 OUTER APPLY (select count(*) as county, b.extension from banana b group by b.extension) AS [CallsPerExt]