Question

当我想更新fixtures表时，尝试完成查找表并继续接收空值。我假设因为我试图将逻辑从硬代码更改为查找表，所以它无效。

下面显示了四个表格（从上到下）： - 得分了 - ScoreReference - 夹具 - TeamWeighting

我想尝试确定每个夹具的双方之间的团队重量的差异，并根据加权，它通过选择与目标差异相匹配的分数来确定更新“夹具”表的分数。 'TeamWeighting'。

如您所见，它显示为NULL，我不知道为什么会这样。

以下是我知道导致问题的查询代码：

;WITH cte AS
(
    SELECT f.FixtureID,
        ht.FinalTeamWeight - at.FinalTeamWeight AS TeamScore
    FROM dbo.Fixture f
    OUTER APPLY
    (
        SELECT tw.FinalTeamWeight
        FROM dbo.TeamWeighting tw
        WHERE tw.TeamID = f.HomeTeamID
    ) ht --HomeTeam
    OUTER APPLY
    (
        SELECT tw.FinalTeamWeight
        FROM dbo.TeamWeighting tw
        WHERE tw.TeamID = f.AwayTeamID
    ) at --AwayTeam
    WHERE f.HomeScore IS NULL AND f.FixtureDate < GETDATE()
)


UPDATE f 
SET f.HomeScore = s.HomeScore,
    f.AwayScore = s.AwayScore
FROM dbo.Fixture f
INNER JOIN 
(
    SELECT FixtureID,
    TeamScore,
    (
        SELECT TOP (1)
        CASE 
            WHEN c.TeamScore BETWEEN HomeWeighting AND AwayWeighting
                THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore > AwayScore ORDER BY NEWID())
            WHEN c.TeamScore BETWEEN AwayWeighting AND HomeWeighting
                THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE AwayScore > HomeScore ORDER BY NEWID())
        END AS ScoreID
        FROM dbo.Score s
        LEFT JOIN ScoreReference sr
        ON s.ScoreDifference = sr.ScoreDifference

    ) AS ScoreID -- end select case

FROM cte c

 ) -- end inner join

 AS ScoreResult
    ON f.FixtureID = ScoreResult.FixtureID
INNER JOIN Score s
    ON ScoreResult.ScoreID = s.ScoreID
INNER JOIN ScoreReference sr
    ON s.ScoreDifference = sr.ScoreDifference


    Select * from dbo.Score
    Select * from dbo.ScoreReference
    SELECT * from dbo.Fixture
    SELECT * From TeamWeighting

END

Answer 1

试试这个。

;WITH cte AS
(
    SELECT f.FixtureID,
        ht.FinalTeamWeight - at.FinalTeamWeight AS TeamScore
    FROM dbo.Fixture f
    OUTER APPLY
    (
        SELECT tw.FinalTeamWeight
        FROM dbo.TeamWeighting tw
        WHERE tw.TeamID = f.HomeTeamID
    ) ht --HomeTeam
    OUTER APPLY
    (
        SELECT tw.FinalTeamWeight
        FROM dbo.TeamWeighting tw
        WHERE tw.TeamID = f.AwayTeamID
    ) at --AwayTeam
    WHERE f.HomeScore IS NULL AND f.FixtureDate < GETDATE()
)


UPDATE f 
SET f.HomeScore = s.HomeScore,
    f.AwayScore = s.AwayScore
FROM dbo.Fixture f
INNER JOIN 
(
    SELECT FixtureID,
    TeamScore,
    (
        SELECT TOP (1)
        CASE 
            WHEN c.TeamScore BETWEEN HomeWeighting AND AwayWeighting
                THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore > AwayScore ORDER BY NEWID())
            WHEN c.TeamScore BETWEEN AwayWeighting AND HomeWeighting
                THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE AwayScore > HomeScore ORDER BY NEWID())
        END AS ScoreID
        FROM dbo.Score s
        INNER JOIN ScoreReference sr
        ON s.ScoreDifference = sr.ScoreDifference

    ) AS ScoreID -- end select case

FROM cte c

 ) -- end inner join

 AS ScoreResult
    ON f.FixtureID = ScoreResult.FixtureID
INNER JOIN Score s
    ON ScoreResult.ScoreID = s.ScoreID
INNER JOIN ScoreReference sr
    ON s.ScoreDifference = sr.ScoreDifference


    Select * from dbo.Score
    Select * from dbo.ScoreReference
    SELECT * from dbo.Fixture
    SELECT * From TeamWeighting

END

Answer 2

试试这个。这应该工作

DECLARE @fixtureID INT,
    @scoreDifference INT

;WITH cte AS
(
    SELECT f.FixtureID,
        ht.FinalTeamWeight - at.FinalTeamWeight AS TeamScore
    FROM dbo.Fixture f
    OUTER APPLY
    (
        SELECT tw.FinalTeamWeight
        FROM dbo.TeamWeighting tw
        WHERE tw.TeamID = f.HomeTeamID
    ) ht --HomeTeam
    OUTER APPLY
    (
        SELECT tw.FinalTeamWeight
        FROM dbo.TeamWeighting tw
        WHERE tw.TeamID = f.AwayTeamID
    ) at --AwayTeam
    WHERE f.HomeScore IS NULL AND f.FixtureDate < GETDATE()
)


SELECT FixtureID, 
    ScoreDifference
INTO #processData
FROM
(
    SELECT DISTINCT c.FixtureID,
            TeamScore, 
            CASE WHEN TeamScore BETWEEN sr.HomeWeighting AND sr.AwayWeighting 
                    THEN sr.ScoreDifference 
                 WHEN TeamScore BETWEEN sr.AwayWeighting  AND sr.HomeWeighting 
                    THEN sr.ScoreDifference 
            END AS ScoreDifference
    FROM cte c
    CROSS APPLY ScoreReference sr
) score
WHERE ScoreDifference IS NOT NULL

WHILE (SELECT COUNT(*) FROM #processData) > 0
BEGIN

    SELECT TOP 1 @fixtureID = FixtureID,
        @scoreDifference = ScoreDifference 
    FROM #processData

    UPDATE f
    SET f.HomeScore = score.HomeScore,
     f.AwayScore = score.AwayScore
    FROM
    (
        SELECT TOP 1  HomeScore, 
            AwayScore, 
            @fixtureID AS FixtureID 
        FROM Score s
        WHERE ScoreDifference = @scoreDifference
        ORDER BY NEWID()
    ) AS score
    INNER JOIN Fixture f
        ON f.FixtureID = score.FixtureID

    DELETE #processData
    WHERE FixtureID = @fixtureID

END

    DROP TABLE #processData

尝试执行UPDATE

2 个答案: