SQL數據透視行到沒有聚合的列

我需要將行轉換爲列，員工有不同的問題存儲在行中，我想每個員工最多顯示3個問題我看到的大多數示例都包含一些來自聚合的示例。我正在尋找一個直接的價值樞紐。這樣的下面源表

EMPId Question 
121 Should I refer for a desk assessment 
121 They have accused me of bullying 
121 what services can they be referred for ? 
121 what services can they be referred for ? 
122 They have accused me of bullying 
122 what services can they be referred for ? 
123 what services can they be referred for ?

所需的輸出

+----------+------------------------------------------+------------------------------------------+------------------------------------------+ 
| EMPId |    Question1     |    Question2     |    Question3     | 
+----------+------------------------------------------+------------------------------------------+------------------------------------------+ 
|  121 | Should I refer for a desk assessment  | They have accused me of bullying   | what services can they be referred for ? | 
|  122 | They have accused me of bullying   | what services can they be referred for ? |           | 
|  123 | what services can they be referred for ? |           |           | 
+----------+------------------------------------------+------------------------------------------+------------------------------------------+

來源

2017-08-09 Vinay Rai

檢查這裏的格式怎麼這麼表。 https://meta.stackexchange.com/questions/96125/how-to-format-sql-tables-in-a-stack-overflow-post –

有趣...這個問題被標記爲SQL Server，雖然問題似乎爲HTML？如果你真的有一個SQL Server的問題，你會想發佈一些t-sql顯示你試圖去的地方，然後有人可以引導你。 – Eli

@Eli問題是OP不知道如何以ascii格式格式化表格並使用HTML，但SO沒有使用html格式 –

你在找查詢：

Select * from (
    Select *, RowN = Concat('Question', dense_rank() over(partition by EmpId order by Question)) 
     from #questions 
) a 
pivot (max(Question) for RowN in ([Question1],[Question2],[Question3])) p

如果輸入是XML，如果你期待轉換XML的查詢將不會工作。

輸出如下：

+-------+------------------------------------------+------------------------------------------+------------------------------------------+ 
| Empid |    Question1     |    Question2     |    Question3     | 
+-------+------------------------------------------+------------------------------------------+------------------------------------------+ 
| 121 | Should I refer for a desk assessment  | They have accused me of bullying   | what services can they be referred for ? | 
| 122 | They have accused me of bullying   | what services can they be referred for ? | NULL          | 
| 123 | what services can they be referred for ? | NULL          | NULL          | 
+-------+------------------------------------------+------------------------------------------+------------------------------------------+

來源

2017-08-09 19:21:10

您只需要包含3個問題，但是重要的OP解釋了選擇這3個邏輯的用法。 –

SQL數據透視行到沒有聚合的列

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