通過周，SQL和ColdFusion

Question

安排我希望得到員工（垂直）的名單和他們的工作做了安排由周（水平），到目前爲止，我已經成功地編寫代碼：

SQL代碼

SELECT EP.EMPLOYEE_ID,EP.EMPLOYEE_NAME,EP.EMPLOYEE_SURNAME,WEEK=DATEDIFF(WEEK, DATEADD(MONTH, DATEDIFF(MONTH, 0, PW.RECORD_DATE), 0), PW.RECORD_DATE) +1, 
    WORKS=SUM(CASE WHEN PW.WORK_ID IS NOT NULL THEN 1 ELSE 0 END) 
    FROM EMPLOYEE_POSITIONS EP 
    LEFT OUTER JOIN PRO_WORKS PW ON PW.PROJECT_EMP_ID=EP.EMPLOYEE_ID 
    WHERE EP.POSITION_STATUS=1 AND DATEPART(MM,PW.RECORD_DATE)=#attributes.month# AND DATEPART(YY,PW.RECORD_DATE)=#session.ep.period_year# 
    GROUP BY EP.EMPLOYEE_ID,DATEDIFF(WEEK, DATEADD(MONTH, DATEDIFF(MONTH, 0, PW.RECORD_DATE), 0), PW.RECORD_DATE) +1,EP.EMPLOYEE_NAME,EP.EMPLOYEE_SURNAME 
    ORDER BY EP.EMPLOYEE_NAME,EP.EMPLOYEE_SURNAME 

輸出

<cfoutput query="get_works" group="employee_id"> 
     <tr height="20" onMouseOver="this.className='color-light';" onMouseOut="this.className='color-row';" class="color-row"> 
      <td>#EMPLOYEE_NAME# #EMPLOYEE_SURNAME#</td> 
      <cfoutput> 
       <td>#WORKS# - #WEEK#</td> 
      </cfoutput> 
     </tr> 
    </cfoutput> 

這樣做的輸出，重複EMP列表loyees和幾周重複的工作。 什麼即時做錯了？

謝謝大家的幫助！

更新：我已經改變了代碼，現在是空值的問題，有沒有零值:(

Answer 1

我已經設法解決我的問題由ARR通過這種方式，每個星期風港在一個月：

SELECT EP.EMPLOYEE_ID,EP.EMPLOYEE_NAME,EP.EMPLOYEE_SURNAME, 
    WEEK1=SUM(CASE WHEN (DATEDIFF(WEEK, DATEADD(MONTH, DATEDIFF(MONTH, 0, PW.RECORD_DATE), 0), PW.RECORD_DATE) +1)=1 THEN 1 ELSE 0 END), 
    WEEK2=SUM(CASE WHEN (DATEDIFF(WEEK, DATEADD(MONTH, DATEDIFF(MONTH, 0, PW.RECORD_DATE), 0), PW.RECORD_DATE) +1)=2 THEN 1 ELSE 0 END), 
    WEEK3=SUM(CASE WHEN (DATEDIFF(WEEK, DATEADD(MONTH, DATEDIFF(MONTH, 0, PW.RECORD_DATE), 0), PW.RECORD_DATE) +1)=3 THEN 1 ELSE 0 END), 
    WEEK4=SUM(CASE WHEN (DATEDIFF(WEEK, DATEADD(MONTH, DATEDIFF(MONTH, 0, PW.RECORD_DATE), 0), PW.RECORD_DATE) +1)=4 THEN 1 ELSE 0 END), 
    WEEK5=SUM(CASE WHEN (DATEDIFF(WEEK, DATEADD(MONTH, DATEDIFF(MONTH, 0, PW.RECORD_DATE), 0), PW.RECORD_DATE) +1)=5 THEN 1 ELSE 0 END), 
    WEEK6=SUM(CASE WHEN (DATEDIFF(WEEK, DATEADD(MONTH, DATEDIFF(MONTH, 0, PW.RECORD_DATE), 0), PW.RECORD_DATE) +1)=6 THEN 1 ELSE 0 END) 
    FROM EMPLOYEE_POSITIONS EP 
    LEFT OUTER JOIN PRO_WORKS PW ON PW.PROJECT_EMP_ID=EP.EMPLOYEE_ID 
    WHERE EP.POSITION_STATUS=1 AND DATEPART(MM,PW.RECORD_DATE)=#attributes.month# AND DATEPART(YY,PW.RECORD_DATE)=#session.ep.period_year# 
    GROUP BY EP.EMPLOYEE_ID,EP.EMPLOYEE_NAME,EP.EMPLOYEE_SURNAME 
    ORDER BY EP.EMPLOYEE_NAME,EP.EMPLOYEE_SURNAME 

輸出：

<cfoutput query="get_works"> 
     <tr height="20" onMouseOver="this.className='color-light';" onMouseOut="this.className='color-row';" class="color-row"> 
      <td>#EMPLOYEE_NAME# #EMPLOYEE_SURNAME#</td> 
      <td style="text-align:center;">#week1#</td> 
      <td style="text-align:center;">#week2#</td> 
      <td style="text-align:center;">#week3#</td> 
      <td style="text-align:center;">#week4#</td> 
      <td style="text-align:center;">#week5#</td> 
      <td style="text-align:center;">#week6#</td> 
     </tr> 
    </cfoutput> 

Answer 2

你正在嘗試做一個cross tab或pivot查詢Excel用戶都非常熟悉。這通常和他們的數據一樣

嘗試把你的查詢結果如下，使用SQL-Server的PIVOT [http://technet.microsoft.com/en-us/library/ms177410%28v=sql.105%29.aspx]函數，然後輸出結果集。對於表頭，你可以使用COLUMNLIST函數。