將按位數據轉換爲多列

Question

我繼承了需要清理的用戶數據。它最初是在MS Access數據庫中，我需要將其轉換爲SQL Server。我現在在SQL Server中有表，但是有一列我需要幫助的數據。

有很多列，如名稱，電子郵件等，這些都是非常簡單的。

但是，有一列存儲按位數據。此列將顯示用戶可以屬於的組。在用戶欄

All  1 
Air  2 
Plants 4 
Energy 8 
Land 16 
Elec 32 
Fire 64 
Water 128 
Cloud 256 
Soil 512 
Waste 1024 
Local 2048 
Coast 4096 

的數據可能是2，他們屬於中航集團，或者它可能是一個6：通過了多項紀錄會我已經確定了這些團體和他們的相關數字是當他們屬於空氣和植物（2 + 4）。

我創建了一個包含用戶ID字段的表。

User_ID 
All 
Air 
Plants 
Energy 
Land 
Elec 
Fire 
Water 
Cloud 
Soil 
Waste 
Local 
Coast 

所以我需要通過舊錶進行迭代，然後在新表中的列插入對應的真實的值，因此

因此，如果數據是：

User_ID Name  Group 
     1 Jo Smith  2 
     2 Carl White  8 

我最終會以

User_ID All Air Plants Energy .... 
     1   true   
     2       true 

等等。

然而，因爲用戶可以屬於多個組數據看上去更像是這樣的：

Jake C 1552 
Jeff H 1556 
Cath B 1561 
Emma B 1564 
Alex G 1572 
Alan H 1574 
Jo  L 1596 
Roy  A 1600 

如何着手建立我的新表？我曾經想過沿線

SELECT * FROM [dbo].[Users] where [Group] & 2 != 0 

將開始帶回我需要的數據，但我不確定這是否是正確的軌道。

編輯：我願意利用外部代碼，如果這是需要什麼 - 不一定要與SQL命令來完成/查詢

Answer 1

select  user_id 

      ,sign ([Group] & 1 ) as [All]  
      ,sign ([Group] & 2 ) as [Air]  
      ,sign ([Group] & 4 ) as [Plants] 
      ,sign ([Group] & 8 ) as [Energy] 
      ,sign ([Group] & 16 ) as [Land] 
      ,sign ([Group] & 32 ) as [Elec]  
      ,sign ([Group] & 64 ) as [Fire]  
      ,sign ([Group] & 128) as [Water] 
      ,sign ([Group] & 256) as [Cloud] 
      ,sign ([Group] & 512) as [Soil]  
      ,sign ([Group] & 1024) as [Waste] 
      ,sign ([Group] & 2048) as [Local] 
      ,sign ([Group] & 4096) as [Coast] 

from  [dbo].[Users] 

或

select  user_id 

      ,sign ([Group] & power(2, 0)) as [All]  
      ,sign ([Group] & power(2, 1)) as [Air]  
      ,sign ([Group] & power(2, 2)) as [Plants] 
      ,sign ([Group] & power(2, 3)) as [Energy] 
      ,sign ([Group] & power(2, 4)) as [Land] 
      ,sign ([Group] & power(2, 5)) as [Elec]  
      ,sign ([Group] & power(2, 6)) as [Fire]  
      ,sign ([Group] & power(2, 7)) as [Water] 
      ,sign ([Group] & power(2, 8)) as [Cloud] 
      ,sign ([Group] & power(2, 9)) as [Soil]  
      ,sign ([Group] & power(2,10)) as [Waste] 
      ,sign ([Group] & power(2,11)) as [Local] 
      ,sign ([Group] & power(2,12)) as [Coast] 

from  [dbo].[Users] 

---

select  u.* 
      ,[All] + [Air] + [Plants] + [Energy] + [Land] + [Elec] + [Fire] + [Water] + [Cloud] + [Soil] + [Waste] + [Local] + [Coast]  as cnt 

from  (select  user_id 

         ,sign ([Group] & power(2, 0)) as [All]  
         ,sign ([Group] & power(2, 1)) as [Air]  
         ,sign ([Group] & power(2, 2)) as [Plants] 
         ,sign ([Group] & power(2, 3)) as [Energy] 
         ,sign ([Group] & power(2, 4)) as [Land] 
         ,sign ([Group] & power(2, 5)) as [Elec]  
         ,sign ([Group] & power(2, 6)) as [Fire]  
         ,sign ([Group] & power(2, 7)) as [Water] 
         ,sign ([Group] & power(2, 8)) as [Cloud] 
         ,sign ([Group] & power(2, 9)) as [Soil]  
         ,sign ([Group] & power(2,10)) as [Waste] 
         ,sign ([Group] & power(2,11)) as [Local] 
         ,sign ([Group] & power(2,12)) as [Coast] 

      from  [dbo].[Users] 
      ) u 
;