Bonjour à tous,

je souhaite créer une instruction SELECT dans le but d'entrainer une IA et d'en interroger la prédiction :

actuellement, je l'entraine avec cette requête :

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SELECT b.Difficulte,b.Autostart,b.Allocation,b.Distance,b.Partants,b.CptStats,b.Age,c.Numero,c.Corde,c.DistPoid,c.Gains,c.ClaZone,c.Cote11h,c.CoteDef,c.CoteGen,c.Pourcent11h,c.PourcentDef,c.ClasCoefReussite,c.CoefReussite,c.IndFor,c.IndForme,c.NbCourses,c.NbVictoires,c.NbPlaces,c.ClaCote,c.PtsOR,c.ClaOR,c.PtsAR,c.ClaAR,c.PtsCX,c.ClaCX,c.PtsCRIFX,c.ClaCRIFX,c.PtsTMatic,c.ClaTMatic,c.PtsHisto,c.ClaHisto,c.PtsRub,c.ClaRub,c.PrcCh,c.PrcDr,c.PrcEn,c.NbBloc,c.NbCouples,c.VaCouples,c.ClasMN,c.ClasPT,c.ClasRE,c.ClasRD,c.ClaIDC,c.ClaCFP,c.PtsMN,c.PtsPT,c.PtsRD,c.PtsRE,c.PtsCFP,c.PtsIDC,c.ClasPtsStats,c.PtsStats,c.ClasValStats,c.ValStats,c.ClasStats,c.CumStats,c.PtsSynth,c.ClasSynth,c.PlaceArrivee
FROM Reunions a, Courses b, Chevaux c
WHERE a.Numgeny = b.Numgeny AND b.Numgeny = c.Numgeny AND b.NumCourse = c.NumCourse
AND a.DateReunion>='01/10/2019' AND a.DateReunion<='30/04/2023' 
AND a.LieuCourse='Bordeaux le bouscat' 
AND b.Partants>7
Je souhaiterai intégrer à chaque ligne de cette requête les 10 premières lignes de ma table historique chevaux "Performances" en lui passant le nom du cheval, la date de la course et la discipline, pour obtenir en retour les 10 lignes de 19 colonnes sur la même ligne en ajoutant 190 colonnes :

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TABLE [dbo].[Performances](
       [Nom] [nvarchar](50) NOT NULL,
       [DatePerf] [datetime2](0) NOT NULL,
       [Lieu] [nvarchar](50) NULL,
       [Dist] [real] NULL,
       [Gains] [int] NULL,
       [Partants] [smallint] NULL,
       [Corde] [nvarchar](50) NULL,
       [Cordage] [nvarchar](50) NULL,
       [Deferre] [nvarchar](255) NULL,
       [Poid] [real] NULL,
       [Discipline] [nvarchar](50) NOT NULL,
       [TypeCourse] [nvarchar](50) NULL,
       [Allocation] [int] NULL,
       [Place] [nvarchar](50) NULL,
       [RedKDist] [nvarchar](50) NULL,
       [Cote] [real] NULL,
       [Avis] [nvarchar](255) NULL,
       [Video] [nvarchar](255) NULL,
       [DateModif] [datetime2](0) NULL
Je pense qu'il faut utiliser la fonction PIVOT, mais mes compétences SQL sont assez limitées :

J'ai commencé à écrire cette procédure sans la fonction pivot, mais je m'embrouille et suis dépassé :
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CREATE OR ALTER FUNCTION get_last_10_performances(@NomChx [nvarchar](50), @DateCourse [datetime2], @Discipline [nvarchar](50))
RETURNS @last_10_performances TABLE (
    [DatePerf1] [datetime2](0) NULL,
    [Dist1] [real] NULL,
    [Gains1] [int] NULL,
    [Partants1] [smallint] NULL,
    [Corde1] [nvarchar](50) NULL,
    [Deferre1] [nvarchar](255) NULL,
    [Poid1] [real] NULL,
    [Allocation1] [int] NULL,
    [Place1] [nvarchar](50) NULL,
    [Cote1] [real] NULL,
    [DatePerf2] [datetime2](0) NULL,
    [Dist2] [real] NULL,
    [Gains2] [int] NULL,
    [Partants2] [smallint] NULL,
    [Corde2] [nvarchar](50) NULL,
    [Deferre2] [nvarchar](255) NULL,
    [Poid2] [real] NULL,
    [Allocation2] [int] NULL,
    [Place2] [nvarchar](50) NULL,
    [Cote2] [real] NULL,
    [DatePerf3] [datetime2](0) NULL,
    [Dist3] [real] NULL,
    [Gains3] [int] NULL,
    [Partants3] [smallint] NULL,
    [Corde3] [nvarchar](50) NULL,
    [Deferre3] [nvarchar](255) NULL,
    [Poid3] [real] NULL,
    [Allocation3] [int] NULL,
    [Place3] [nvarchar](50) NULL,
    [Cote3] [real] NULL,
    [DatePerf4] [datetime2](0) NULL,
    [Dist4] [real] NULL,
    [Gains4] [int] NULL,
    [Partants4] [smallint] NULL,
    [Corde4] [nvarchar](50) NULL,
    [Deferre4] [nvarchar](255) NULL,
    [Poid4] [real] NULL,
    [Allocation4] [int] NULL,
    [Place4] [nvarchar](50) NULL,
    [Cote4] [real] NULL,
    [DatePerf5] [datetime2](0) NULL,
    [Dist5] [real] NULL,
    [Gains5] [int] NULL,
    [Partants5] [smallint] NULL,
    [Corde5] [nvarchar](50) NULL,
    [Deferre5] [nvarchar](255) NULL,
    [Poid5] [real] NULL,
    [Allocation5] [int] NULL,
    [Place5] [nvarchar](50) NULL,
    [Cote5] [real] NULL,
    [DatePerf6] [datetime2](0) NULL,
    [Dist6] [real] NULL,
    [Gains6] [int] NULL,
    [Partants6] [smallint] NULL,
    [Corde6] [nvarchar](50) NULL,
    [Deferre6] [nvarchar](255) NULL,
    [Poid6] [real] NULL,
    [Allocation6] [int] NULL,
    [Place6] [nvarchar](50) NULL,
    [Cote6] [real] NULL,
    [DatePerf7] [datetime2](0) NULL,
    [Dist7] [real] NULL,
    [Gains7] [int] NULL,
    [Partants7] [smallint] NULL,
    [Corde7] [nvarchar](50) NULL,
    [Deferre7] [nvarchar](255) NULL,
    [Poid7] [real] NULL,
    [Allocation7] [int] NULL,
    [Place7] [nvarchar](50) NULL,
    [Cote7] [real] NULL,
    [DatePerf8] [datetime2](0) NULL,
    [Dist8] [real] NULL,
    [Gains8] [int] NULL,
    [Partants8] [smallint] NULL,
    [Corde8] [nvarchar](50) NULL,
    [Deferre8] [nvarchar](255) NULL,
    [Poid8] [real] NULL,
    [Allocation8] [int] NULL,
    [Place8] [nvarchar](50) NULL,
    [Cote8] [real] NULL,
    [DatePerf9] [datetime2](0) NULL,
    [Dist9] [real] NULL,
    [Gains9] [int] NULL,
    [Partants9] [smallint] NULL,
    [Corde9] [nvarchar](50) NULL,
    [Deferre9] [nvarchar](255) NULL,
    [Poid9] [real] NULL,
    [Allocation9] [int] NULL,
    [Place9] [nvarchar](50) NULL,
    [Cote9] [real] NULL,
    [DatePerf10] [datetime2](0) NULL,
    [Dist10] [real] NULL,
    [Gains10] [int] NULL,
    [Partants10] [smallint] NULL,
    [Corde10] [nvarchar](50) NULL,
    [Deferre10] [nvarchar](255) NULL,
    [Poid10] [real] NULL,
    [Allocation10] [int] NULL,
    [Place10] [nvarchar](50) NULL,
    [Cote10] [real] NULL
) AS 
BEGIN
    DECLARE @dateperf DATETIME2
    DECLARE @compteur INT = 0
    DECLARE @maxiter INT = 10
 
    DECLARE cur_performances CURSOR FOR
    SELECT  DatePerf,Dist,Gains,Partants,Corde,Deferre,Poid,Allocation,Place,Cote
    FROM performances p
    WHERE 
        p.Nom = @NomChx AND
        p.DatePerf < @DateCourse AND
        p.Discipline = @Discipline
    ORDER BY p.DatePerf DESC
 
    OPEN cur_performances
    FETCH NEXT FROM cur_performances INTO @dateperf
 
    WHILE @@FETCH_STATUS = 0 AND @compteur < @maxiter
    BEGIN
 
A partir de la je pense que ça ne va plus…
Et j’aimerais si possible que le retour soit constitué des 100 colonnes et complétée par des colonne Null si le cheval a moins de 10 performances.
 
 
        INSERT INTO @last_10_performances(DatePerf1, Dist1, Gains1, Partants1, Corde1, Deferre1, Poid1, Allocation1, Place1, Cote1,
                                          DatePerf2, Dist2, Gains2, Partants2, Corde2, Deferre2, Poid2, Allocation2, Place2, Cote2,
                                          DatePerf3, Dist3, Gains3, Partants3, Corde3, Deferre3, Poid3, Allocation3, Place3, Cote3,
                                          DatePerf4, Dist4, Gains4, Partants4, Corde4, Deferre4, Poid4, Allocation4, Place4, Cote4,
                                         DatePerf5, Dist5, Gains5, Partants5, Corde5, Deferre5, Poid5, Allocation5, Place5, Cote5,
                                          DatePerf6, Dist6, Gains6, Partants6, Corde6, Deferre6, Poid6, Allocation6, Place6, Cote6,
                                          DatePerf7, Dist7, Gains7, Partants7, Corde7, Deferre7, Poid7, Allocation7, Place7, Cote7,
                                          DatePerf8, Dist8, Gains8, Partants8, Corde8, Deferre8, Poid8, Allocation8, Place8, Cote8,
                                          DatePerf9, Dist9, Gains9, Partants9, Corde9, Deferre9, Poid9, Allocation9, Place9, Cote9,
                                          DatePerf10, Dist10, Gains10, Partants10, Corde10, Deferre10, Poid10, Allocation10, Place10, Cote10)
        SELECT 
            MAX(CASE WHEN rn = 1 THEN DatePerf END),
            MAX(CASE WHEN rn = 1 THEN Dist END),
            MAX(CASE WHEN rn = 1 THEN Gains END),
            MAX(CASE WHEN rn = 1 THEN Partants END),
            MAX(CASE WHEN rn = 1 THEN Corde END),
            MAX(CASE WHEN rn = 1 THEN Deferre END),
            MAX(CASE WHEN rn = 1 THEN Poid END),
            MAX(CASE WHEN rn = 1 THEN Allocation END),
            MAX(CASE WHEN rn = 1 THEN Place END),
            MAX(CASE WHEN rn = 1 THEN Cote END),
            MAX(CASE WHEN rn = 2 THEN DatePerf END),
            MAX(CASE WHEN rn = 2 THEN Dist END),
            MAX(CASE WHEN rn = 2 THEN Gains END),
            MAX(CASE WHEN rn = 2 THEN Partants END),
            MAX(CASE WHEN rn = 2 THEN Corde END),
            MAX(CASE WHEN rn = 2 THEN Deferre END),
            MAX(CASE WHEN rn = 2 THEN Poid END),
            MAX(CASE WHEN rn = 2 THEN Allocation END),
            MAX(CASE WHEN rn = 2 THEN Place END),
            MAX(CASE WHEN rn = 2 THEN Cote END),
            MAX(CASE WHEN rn = 3 THEN DatePerf END),
            MAX(CASE WHEN rn = 3 THEN Dist END),
            MAX(CASE WHEN rn = 3 THEN Gains END),
            MAX(CASE WHEN rn = 3 THEN Partants END),
            MAX(CASE WHEN rn = 3 THEN Corde END),
            MAX(CASE WHEN rn = 3 THEN Deferre END),
            MAX(CASE WHEN rn = 3 THEN Poid END),
            MAX(CASE WHEN rn = 3 THEN Allocation END),
            MAX(CASE WHEN rn = 3 THEN Place END),
            MAX(CASE WHEN rn = 3 THEN Cote END),
            MAX(CASE WHEN rn = 4 THEN DatePerf END),
            MAX(CASE WHEN rn = 4 THEN Dist END),
            MAX(CASE WHEN rn = 4 THEN Gains END),
            MAX(CASE WHEN rn = 4 THEN Partants END),
            MAX(CASE WHEN rn = 4 THEN Corde END),
            MAX(CASE WHEN rn = 4 THEN Deferre END),
            MAX(CASE WHEN rn = 4 THEN Poid END),
            MAX(CASE WHEN rn = 4 THEN Allocation END),
            MAX(CASE WHEN rn = 4 THEN Place END),
            MAX(CASE WHEN rn = 4 THEN Cote END),
            MAX(CASE WHEN rn = 5 THEN DatePerf END),
            MAX(CASE WHEN rn = 5 THEN Dist END),
            MAX(CASE WHEN rn = 5 THEN Gains END),
            MAX(CASE WHEN rn = 5 THEN Partants END),
            MAX(CASE WHEN rn = 5 THEN Corde END),
            MAX(CASE WHEN rn = 5 THEN Deferre END),
            MAX(CASE WHEN rn = 5 THEN Poid END),
            MAX(CASE WHEN rn = 5 THEN Allocation END),
            MAX(CASE WHEN rn = 5 THEN Place END),
            MAX(CASE WHEN rn = 5 THEN Cote END),
            MAX(CASE WHEN rn = 6 THEN DatePerf END),
            MAX(CASE WHEN rn = 6 THEN Dist END),
            MAX(CASE WHEN rn = 6 THEN Gains END),
            MAX(CASE WHEN rn = 6 THEN Partants END),
            MAX(CASE WHEN rn = 6 THEN Corde END),
            MAX(CASE WHEN rn = 6 THEN Deferre END),
            MAX(CASE WHEN rn = 6 THEN Poid END),
            MAX(CASE WHEN rn = 6 THEN Allocation END),
            MAX(CASE WHEN rn = 6 THEN Place END),
            MAX(CASE WHEN rn = 6 THEN Cote END),
            MAX(CASE WHEN rn = 7 THEN DatePerf END),
            MAX(CASE WHEN rn = 7 THEN Dist END),
            MAX(CASE WHEN rn = 7 THEN Gains END),
            MAX(CASE WHEN rn = 7 THEN Partants END),
            MAX(CASE WHEN rn = 7 THEN Corde END),
            MAX(CASE WHEN rn = 7 THEN Deferre END),
            MAX(CASE WHEN rn = 7 THEN Poid END),
            MAX(CASE WHEN rn = 7 THEN Allocation END),
            MAX(CASE WHEN rn = 7 THEN Place END),
            MAX(CASE WHEN rn = 7 THEN Cote END),
            MAX(CASE WHEN rn = 7 THEN DatePerf END),
            MAX(CASE WHEN rn = 8 THEN Dist END),
            MAX(CASE WHEN rn = 8 THEN Gains END),
            MAX(CASE WHEN rn = 8 THEN Partants END),
            MAX(CASE WHEN rn = 8 THEN Corde END),
            MAX(CASE WHEN rn = 8 THEN Deferre END),
            MAX(CASE WHEN rn = 8 THEN Poid END),
            MAX(CASE WHEN rn = 8 THEN Allocation END),
            MAX(CASE WHEN rn = 8 THEN Place END),
            MAX(CASE WHEN rn = 8 THEN Cote END),
            MAX(CASE WHEN rn = 9 THEN DatePerf END),
            MAX(CASE WHEN rn = 9 THEN Dist END),
            MAX(CASE WHEN rn = 9 THEN Gains END),
            MAX(CASE WHEN rn = 9 THEN Partants END),
            MAX(CASE WHEN rn = 9 THEN Corde END),
            MAX(CASE WHEN rn = 9 THEN Deferre END),
            MAX(CASE WHEN rn = 9 THEN Poid END),
            MAX(CASE WHEN rn = 9 THEN Allocation END),
            MAX(CASE WHEN rn = 9 THEN Place END),
            MAX(CASE WHEN rn = 9 THEN Cote END),
            MAX(CASE WHEN rn = 10 THEN DatePerf END),
            MAX(CASE WHEN rn = 10 THEN Dist END),
            MAX(CASE WHEN rn = 10 THEN Gains END),
            MAX(CASE WHEN rn = 10 THEN Partants END),
            MAX(CASE WHEN rn = 10 THEN Corde END),
            MAX(CASE WHEN rn = 10 THEN Deferre END),
            MAX(CASE WHEN rn = 10 THEN Poid END),
            MAX(CASE WHEN rn = 10 THEN Allocation END),
            MAX(CASE WHEN rn = 10 THEN Place END),
            MAX(CASE WHEN rn = 10 THEN Cote END)
    CLOSE last_10_performances
    DEALLOCATE last_10_performances
    WHILE @compteur < @maxiter
    BEGIN
        INSERT INTO @last_10_performances(
                               )
        VALUES (NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL)
 
        SET @compteur = @compteur + 1
    END
 
    RETURN
END
Merci de votre aide, Tchicken.