行の結果を列に変換する

Question

こんにちは、私は使用しようとしました ピボットと左に同じテーブルを結合し、ここで同様のqを見たが、私は欲しい結果を得ることはできませんエキスパートのための専門家:)：

DECLARE @temp TABLE (id INT, typeID INT) 

INSERT INTO @temp VALUES(1,1) 
INSERT INTO @temp VALUES(1,2) 
INSERT INTO @temp VALUES(1,3) 
INSERT INTO @temp VALUES(1,4) 
INSERT INTO @temp VALUES(1,5) 
INSERT INTO @temp VALUES(2,1) 
INSERT INTO @temp VALUES(2,2) 
INSERT INTO @temp VALUES(2,3) 
INSERT INTO @temp VALUES(3,5) 


SELECT * FROM @temp 

--desired result 
---------------------------------------------------------- 
[id] [typeID1] [typeID2] [typeID3] [typeID4] [typeID5] 
1  1   1  1   1   1 
2  1   1  1 
3             1 
---------------------------------------------------------- 

Answer 1

このコードはほとんどのSQL DBMSで実行されます。

select id, 
    max(case typeID when 1 then 1 end) as typeID1, 
    max(case typeID when 2 then 1 end) as typeID2, 
    max(case typeID when 3 then 1 end) as typeID3, 
    max(case typeID when 4 then 1 end) as typeID4, 
    max(case typeID when 5 then 1 end) as typeID5 
from @temp 
group by id 

Answer 2

PIVOTと動的SQLを使用した別の方法（私たちはテーブルにどのように多くのtypeIDのプレゼントを知らないよう：

USE tempdb 

CREATE TABLE #temp (id INT, typeID INT) 

INSERT INTO #temp VALUES 
(1,1),(1,2),(1,3),(1,4),(1,5),(2,1),(2,2),(2,3),(3,5) 

DECLARE @columns nvarchar(max), 
     @sql nvarchar(max) 

SELECT @columns = COALESCE(@columns,'') + ',[typeID'+CAST(typeID as nvarchar(max))+']' 
FROM #temp 
GROUP BY typeID 

SET @sql = N' 
SELECT id'+@columns+' 
FROM (
SELECT ''typeID''+CAST(typeID as nvarchar(max)) as [types], 
     id 
FROM #temp) as t 
PIVOT (
    COUNT([types]) FOR [types] IN ('+STUFF(@columns,1,1,'')+') 
) as unpvt' 

EXEC sp_executesql @sql 

DROP TABLE #temp 

出力：

id typeID1 typeID2 typeID3 typeID4 typeID5 
1 1  1  1  1  1 
2 1  1  1  0  0 
3 0  0  0  0  1 

Answer 3

この従ってください：https://msdn.microsoft.com/en-us/library/hh231515.aspx

を

私の意見では、それがどのように動作するかを学ぶなら、本当に役に立ちます：

DECLARE @temp TABLE (id INT, typeID INT) 

INSERT INTO @temp VALUES(1,1) 
INSERT INTO @temp VALUES(1,2) 
INSERT INTO @temp VALUES(1,3) 
INSERT INTO @temp VALUES(1,4) 
INSERT INTO @temp VALUES(1,5) 
INSERT INTO @temp VALUES(2,1) 
INSERT INTO @temp VALUES(2,2) 
INSERT INTO @temp VALUES(2,3) 
INSERT INTO @temp VALUES(3,5) 

SELECT ID, 
[1] as Type1, [2] as Type2, [3] as Type3, [4] as Type4, [5] as Type5 
FROM 
(SELECT ID, typeID 
    FROM @temp) AS SourceTable 
PIVOT 
(
COUNT(TYPEID) 
FOR TYPEID IN ([1], [2], [3], [4],[5]) 
) AS PivotTable