Sqlテーブルの各列の異なるエントリの数を取得するクエリ

Question

データベースに60列のテーブルがあるとします。誰かがテーブルの各列（60）のすべての別個のエントリの数をフェッチするクエリを教えてもらえますか？上記の表の

Cl1  Cl2 Cl3 
68722 No No No No No Yes Male No No 
68723 No Yes No No No Yes FeMale No No 
68725  No No No No Yes Male No No 

同様に、私は10列（カラム10にカラム1）

私が望む回答があるとします。

Cl2 No =2 , Blank=1 

Cl3 No=2, Yes =1 

というように、最大​​10

をしてくださいSQL Serverのクエリを私に与えてください。

Answer 1

UNPIVOT + GROUP BYおよびCOUNT：

SELECT [Columns], 
     Case when [Values] = '' THEN 'Blank' ELSE [Values] END [Values], 
     COUNT(Id) as HowMany 
FROM (
    SELECT Id, 
      CAST(Cl1 as nvarchar(max)) as Cl1, 
      CAST(Cl2 as nvarchar(max)) as Cl2, 
      CAST(Cl3 as nvarchar(max)) as Cl3, 
      CAST(Cl4 as nvarchar(max)) as Cl4, 
      CAST(Cl5 as nvarchar(max)) as Cl5, 
      CAST(Cl6 as nvarchar(max)) as Cl6, 
      CAST(Cl7 as nvarchar(max)) as Cl7, 
      CAST(Cl8 as nvarchar(max)) as Cl8, 
      CAST(Cl9 as nvarchar(max)) as Cl9 
    FROM YourTable 
) as t 
UNPIVOT (
    [Values] FOR [Columns] IN (Cl1, Cl2, Cl3, Cl4, Cl5, Cl6, Cl7, Cl8, Cl9) 
) as unpvt 
GROUP BY [Columns], [Values] 
ORDER BY [Columns] 

出力：

あなたはCTEでこれを置くことができます：

;WITH cte as (
    SELECT [Columns], 
      Case when [Values] = '' THEN 'Blank' ELSE [Values] END + '='+CAST(COUNT(Id) as nvarchar(max)) as HowMany 
    FROM (
     SELECT Id, 
       CAST(Cl1 as nvarchar(max)) as Cl1, 
       CAST(Cl2 as nvarchar(max)) as Cl2, 
       CAST(Cl3 as nvarchar(max)) as Cl3, 
       CAST(Cl4 as nvarchar(max)) as Cl4, 
       CAST(Cl5 as nvarchar(max)) as Cl5, 
       CAST(Cl6 as nvarchar(max)) as Cl6, 
       CAST(Cl7 as nvarchar(max)) as Cl7, 
       CAST(Cl8 as nvarchar(max)) as Cl8, 
       CAST(Cl9 as nvarchar(max)) as Cl9 
     FROM YourTable 
    ) as t 
    UNPIVOT (
     [Values] FOR [Columns] IN (Cl1, Cl2, Cl3, Cl4, Cl5, Cl6, Cl7, Cl8, Cl9) 
    ) as unpvt 
    GROUP BY [Columns], [Values] 
) 

SELECT DISTINCT 
      [Columns] +' '+  
      STUFF((
      SELECT ';'+HowMany 
      FROM cte 
      WHERE c.[Columns] = [Columns] 
      FOR XML PATH('') 
      ),1,1,'') as [Values] 
FROM cte c 

出力：

Values 
Cl1 Blank=1;No=2 
Cl2 No=2;Yes=1 
Cl3 No=3 
Cl4 No=3 
Cl5 No=3 
Cl6 Yes=3 
Cl7 FeMale=1;Male=2 
Cl8 No=3 
Cl9 No=3 

を