SQL在列中選擇不同的值/列中的動態值計數

Question

我正在嘗試在SSMS 2008中編寫SQL腳本，並且已經在網上尋找答案，我發現沒有什麼是完整的解決方案。

我有幾個關於分配給用戶和腳本的角色，組和配置文件的信息以獲取該信息。我得到的結果是「正確的」，但沒有以顧客希望看到的方式顯示。角色，組和配置文件彼此之間沒有任何關聯，並且可能會爲每個用戶分配不同數量的其他用戶（即2個角色，1個組和4個配置文件）。

這裏是我的SQL腳本：

select distinct 
DWUser.uid as ID, 
DWUser.name as Name, 
DWRoles.name as Roles, 
DWGroup.name as Groups, 
DWFCProfile.name as Profiles 
from DWUser 
/* Joins for getting role name */ 
inner join DWUserToRole on DWUser.uid = DWUserToRole.uid 
inner join DWRoles on DWUserToRole.rid = dwRoles.rid 
/* Joins for getting group name */ 
inner join DWUserToGroup on DWUser.uid = DWUserToGroup.uid 
inner join DWGroup on DWUserToGroup.gid = DWGroup.gid 
/* Joins for getting profile name */ 
inner join DWFCProfileToUser on DWUser.uid = DWFCProfileToUser.uid 
inner join DWFCProfile on DWFCProfileToUser.fpid = DWFCProfile.fpid 

它返回這樣的結果：所以基本上

ID Name  Roles      Groups  Profiles 

1 admin  Organization Administrator Public  Contracts 
       System Administrator     My Basket 1 
                 My Basket 2 
                 My Basket 3 
4 docuware Organization Administrator Public  Contracts 
              votosign My Basket 1 
                 My Basket 2 
                 My Basket 3 

爲：

ID Name  Roles      Groups  Profiles 

1 admin  Organization Administrator Public  Contracts 
1 admin  Organization Administrator Public  My Basket 1 
1 admin  Organization Administrator Public  My Basket 2 
1 admin  Organization Administrator Public  My Basket 3 
1 admin  System Administrator  Public  Contracts 
1 admin  System Administrator  Public  My Basket 1 
1 admin  System Administrator  Public  My Basket 2 
1 admin  System Administrator  Public  My Basket 3 
4 docuware Organization Administrator Public  Contracts 
4 docuware Organization Administrator Public  My Basket 1 
4 docuware Organization Administrator Public  My Basket 2 
4 docuware Organization Administrator Public  My Basket 3 
4 docuware Organization Administrator votosign Contracts 
4 docuware Organization Administrator votosign My Basket 1 
4 docuware Organization Administrator votosign My Basket 2 
4 docuware Organization Administrator votosign My Basket 3 

客戶希望看到的結果的方式是每個用戶我需要刪除任何重複的角色，組和配置文件，而不管它們出現在列中的順序如何umn（即使重複項不像「角色」和「組」列中的「堆疊」）。

我敢肯定的答案是「否」，但這裏有雲：

有沒有辦法輸出使用Microsoft SQL期望的結果？

Answer 1

在這裏，我們concatinate通過XML字符串和STUFF（），最後注入一個CRLF作爲分隔符

需要明確的是，在這種情況下數據的只有兩排將返回，但是每個可具有多條線。

例

Declare @YourTable Table ([ID] varchar(50),[Name] varchar(50),[Roles] varchar(50),[Groups] varchar(50),[Profiles] varchar(50)) 
Insert Into @YourTable Values 
(1,'admin','Organization Administrator','Public','Contracts') 
,(1,'admin','Organization Administrator','Public','My Basket 1') 
,(1,'admin','Organization Administrator','Public','My Basket 2') 
,(1,'admin','Organization Administrator','Public','My Basket 3') 
,(1,'admin','System Administrator','Public','Contracts') 
,(1,'admin','System Administrator','Public','My Basket 1') 
,(1,'admin','System Administrator','Public','My Basket 2') 
,(1,'admin','System Administrator','Public','My Basket 3') 
,(4,'docuware','Organization Administrator','Public','Contracts') 
,(4,'docuware','Organization Administrator','Public','My Basket 1') 
,(4,'docuware','Organization Administrator','Public','My Basket 2') 
,(4,'docuware','Organization Administrator','Public','My Basket 3') 
,(4,'docuware','Organization Administrator','votosign','Contracts') 
,(4,'docuware','Organization Administrator','votosign','My Basket 1') 
,(4,'docuware','Organization Administrator','votosign','My Basket 2') 
,(4,'docuware','Organization Administrator','votosign','My Basket 3') 

Select ID 
     ,Name 
     ,Roles = replace((Select Stuff((Select Distinct '|'+Roles From @YourTable Where ID=A.ID For XML Path ('')),1,1,'')),'|',char(13)+char(10)) 
     ,Groups = replace((Select Stuff((Select Distinct '|'+Groups From @YourTable Where ID=A.ID For XML Path ('')),1,1,'')),'|',char(13)+char(10)) 
     ,Profiles = replace((Select Stuff((Select Distinct '|'+Profiles From @YourTable Where ID=A.ID For XML Path ('')),1,1,'')),'|',char(13)+char(10)) 
From (
     Select Distinct ID,Name From @YourTable 
    ) A 

返回

ID Name  Roles      Groups  Profiles 
1 admin Organization Administrator Public  Contracts 
      System Administrator     My Basket 1 
                My Basket 2 
                My Basket 3 
4 docuware Organization Administrator Public  Contracts 
             votosign My Basket 1 
                My Basket 2 
                My Basket 3 

Answer 2

它主要是在UI /表示層，但你可以通過使用ROW_NUMBER實現這一點，如果是1，你可以別的選擇，你可以選擇NULL如下：

select ID = case when(Row_Number() over (partition by id order by id) = 1) then id else null end 
    , Name = case when(row_number() over (partition by id order by id) = 1) then Name else null end 
    , Roles = case when (row_number() over (partition by id, roles order by id) = 1) then Roles else null end 
    , Groups = case when (row_number() over (partition by id, Groups order by id) = 1) then Groups else null end 
    , Profiles 
    from #yourreturnstable