行ごとではなく、(異なる列で)列状にクエリ結果を表示する方法は?

次のようなものかもしれません:

最初のテストデータ:

CREATE TABLE Flight(FlightId  int,FlightNumber varchar(10))
CREATE TABLE FlightCapacity(ID int,FlightIdRef int,ClassIdRef int,Capacity int)
CREATE TABLE Class(ClassId int,Name varchar(10))

INSERT INTO Class VALUES(1,'Y'),(2,'A')
INSERT INTO Flight VALUES(1,123),(2,423)
INSERT INTO FlightCapacity VALUES(1,1,1,10),(2,1,2,20),(3,2,2,10)

次に、次のような一意の列を取得する必要があります:

DECLARE @cols VARCHAR(MAX)
SELECT  @cols = COALESCE(@cols + ','+
                QUOTENAME('ClassNameAndCapacity'+CAST(ClassId AS VARCHAR(10))),
                QUOTENAME('ClassNameAndCapacity'+CAST(ClassId AS VARCHAR(10))))
FROM 
    Class

動的 SQL の宣言と実行:

DECLARE @query NVARCHAR(4000)=
N'SELECT
    *
FROM
(
SELECT
    Flight.FlightNumber,
    Class.Name+CAST(FlightCapacity.Capacity AS VARCHAR(100)) AS ClassName,
    ''ClassNameAndCapacity''+CAST(Class.ClassId AS VARCHAR(10)) AS ClassAndCapacity
FROM
    Flight
    JOIN FlightCapacity
        ON Flight.FlightId=FlightCapacity.FlightIdRef
    JOIN Class
        ON FlightCapacity.ClassIdRef=Class.ClassId
) AS p
PIVOT
(
    MAX(ClassName)
    FOR ClassAndCapacity IN('[email protected]+')
) AS pvt'

EXECUTE(@query)

そして、私の場合、作成したテーブルを削除します:

DROP TABLE Flight
DROP TABLE Class
DROP TABLE FlightCapacity