하드 코딩 된 값을 찾아보기 테이블로 바꾸기

Question

내 사례 문에서 하드 코딩 된 값을 사용하는 대신 룩업 테이블을 사용하여 경계를 결정하고 싶습니다. 나는 어떤 종류의 룩업 테이블도하지 않았으므로 단지 다음을 코딩하는 방법에 대한 지침을 원했다.

가 어떻게 하드 코딩 된 값을 대체 할 내 CASE 문에서이 조회 테이블을 사용할 수 있습니다

나는 다음과 같은 표시 'ScoreReference'로 알려진 테이블이?

SELECT 
TeamScore, 
CASE WHEN TeamScore BETWEEN 11 AND 25 --Home Team Wins by 1 goal 
     THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore > AwayScore AND ScoreDifference = 1 ORDER BY NEWID()) 
    WHEN TeamScore BETWEEN 26 AND 40 --Home Team Wins by 2 goals 
     THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore > AwayScore AND ScoreDifference = 2 ORDER BY NEWID()) 
    WHEN TeamScore BETWEEN 41 AND 55 --Home Team Wins by 3 goals 
     THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore > AwayScore AND ScoreDifference = 3 ORDER BY NEWID()) 
    WHEN TeamScore BETWEEN 56 AND 70 --Home Team Wins by 4 goals 
     THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore > AwayScore AND ScoreDifference = 4 ORDER BY NEWID()) 
    WHEN TeamScore > 71 --Home Team Wins by 5 goals 
     THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore > AwayScore AND ScoreDifference = 5 ORDER BY NEWID()) 
    WHEN TeamScore BETWEEN -25 AND -11 --Away Team Wins by 1 goal 
     THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore < AwayScore AND ScoreDifference = -1 ORDER BY NEWID()) 
    WHEN TeamScore BETWEEN -40 AND -26 --Away Team Wins by 2 goals 
     THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore < AwayScore AND ScoreDifference = -2 ORDER BY NEWID()) 
    WHEN TeamScore BETWEEN -55 AND -41 --Away Team Wins by 3 goals 
     THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore < AwayScore AND ScoreDifference = -3 ORDER BY NEWID()) 
    WHEN TeamScore BETWEEN -70 AND -56 --Away Team Wins by 4 goals 
     THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore < AwayScore AND ScoreDifference = -4 ORDER BY NEWID()) 
    WHEN TeamScore <= -71 --Away Team Wins by 5 goals 
     THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore < AwayScore AND ScoreDifference = -5 ORDER BY NEWID())  
    ELSE (SELECT TOP 1 ScoreID FROM dbo.Score WHERE ScoreDifference = 0 ORDER BY NEWID()) -- Draw 
END AS ScoreID 

업데이트 :

다음

은 '점수'테이블 : 당신은 내가 뭘하려고 오전 볼 수 있듯이

은 각 팀의 가중치에 따라 (한 팀 가중치는 홈팀이고 다른 하나는 어웨이 팀 '입니다), 가중치의 차이는 점수에 반영됩니다. 예 양 팀 간의 가중치가 11-25 사이의 차이 일 경우 점수 차이는 '1'입니다. 이는 '점수'표에서 의미하는 바에 따라 '1'차이가있는 점수를 무작위로 선택합니다. 두 테이블에 대한

날짜 SET :

ScoreReference :

CREATE TABLE [dbo].[ScoreReference] 
(
    [ScoreReferenceID] TINYINT IDENTITY (1,1) NOT NULL PRIMARY KEY, 
    [HomeWeighting] INT NULL, 
    [AwayWeighting] INT NULL, 
    [ScoreDifference] INT NULL 
) 

점수 :

CREATE TABLE [dbo].[Score] 
(
    [ScoreID] INT IDENTITY(1,1) NOT NULL PRIMARY KEY, 
    [HomeScore] INT NULL, 
    [AwayScore] INT NULL, 
    [ScoreDifference] INT NULL 
) 

기구 :

CREATE TABLE [dbo].[Fixture](
    [FixtureID] INT NOT NULL PRIMARY KEY, 
    [WeekNumber] TINYINT NOT NULL, 
    [FixtureDate] DATE NULL, 
    [HomeTeamID] TINYINT NULL, 
    [HomeScore] INT NULL, 
    [AwayTeamID] TINYINT NULL, 
    [AwayScore] INT NULL, 
    [HomeTeamResult] CHAR(1) NULL, 
    [AwayTeamResult] CHAR(1) NULL, 
    [LeagueID] TINYINT CONSTRAINT FK_Fixture_League FOREIGN KEY REFERENCES League(LeagueID) 
) 

TeamWeighting :

다음은 617,451,515,

WITH pl AS (SELECT DISTINCT p.PlayerID 
          ,p.Position 
          ,CASE WHEN p.TeamID = 0 THEN 0 
            ELSE p.playerWeighting END AS playerWeighting 
          ,ABS(CHECKSUM(NewID())) % 10 + 1 AS Form 
          ,t.TeamID 
      FROM dbo.Fixture f 
      INNER JOIN dbo.League l ON f.LeagueID = l.LeagueID 
      INNER JOIN dbo.Team t ON l.LeagueID = t.LeagueID 
      INNER JOIN dbo.Player p ON t.TeamID = p.TeamID 
      WHERE f.WeekNumber = 1) 
,po AS (SELECT *,ROW_NUMBER() OVER(PARTITION BY pl.TeamID, pl.Position ORDER BY NEWID()) AS Rnk FROM pl) 
SELECT TeamID 
    ,SUM(po.playerWeighting) AS TeamWeight 
    ,Form--ABS(CHECKSUM(NewID())) % 10 + 1 AS Form 
    ,SUM(po.playerWeighting/10 * Form + po.playerWeighting) AS FinalTeamWeight 
FROM po 
WHERE (po.Position = 'GK' and po.rnk = 1) OR 
     (po.Position = 'DF' and po.rnk <= 4) OR 
     (po.Position = 'MF' and po.rnk <= 4) OR 
     (po.Position = 'FW' and po.rnk <= 2) 
     GROUP BY po.TeamID 

는 TeamScore입니다 :

;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() 
) 

최신 CODE :

;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 
      CASE 
      WHEN c.TeamScore BETWEEN HomeWeighting AND AwayWeighting AND HomeScore > AwayScore AND s.ScoreDifference = Sr.ScoreDifference 
       THEN S.ScoreID 
      WHEN c.TeamScore BETWEEN AwayWeighting AND HomeWeighting AND HomeScore < AwayScore AND s.ScoreDifference = Sr.ScoreDifference 
       THEN S.ScoreID 
      WHEN c.TeamScore BETWEEN HomeWeighting AND AwayWeighting AND HomeScore = AwayScore AND s.ScoreDifference = Sr.ScoreDifference 
       THEN S.ScoreID 
      END 
     --CASE WHEN TeamScore BETWEEN 11 AND 25 --Home Team Wins by 1 goal 
     -- THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore > AwayScore AND ScoreDifference = 1 ORDER BY NEWID()) 
     -- WHEN TeamScore BETWEEN 26 AND 40 --Home Team Wins by 2 goals 
     -- THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore > AwayScore AND ScoreDifference = 2 ORDER BY NEWID()) 
     -- WHEN TeamScore BETWEEN 41 AND 55 --Home Team Wins by 3 goals 
     -- THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore > AwayScore AND ScoreDifference = 3 ORDER BY NEWID()) 
     -- WHEN TeamScore BETWEEN 56 AND 70 --Home Team Wins by 4 goals 
     -- THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore > AwayScore AND ScoreDifference = 4 ORDER BY NEWID()) 
     -- WHEN TeamScore > 71 --Home Team Wins by 5 goals 
     -- THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore > AwayScore AND ScoreDifference = 5 ORDER BY NEWID()) 
     -- WHEN TeamScore BETWEEN -25 AND -11 --Away Team Wins by 1 goal 
     -- THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore < AwayScore AND ScoreDifference = -1 ORDER BY NEWID()) 
     -- WHEN TeamScore BETWEEN -40 AND -26 --Away Team Wins by 2 goals 
     -- THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore < AwayScore AND ScoreDifference = -2 ORDER BY NEWID()) 
     -- WHEN TeamScore BETWEEN -55 AND -41 --Away Team Wins by 3 goals 
     -- THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore < AwayScore AND ScoreDifference = -3 ORDER BY NEWID()) 
     -- WHEN TeamScore BETWEEN -70 AND -56 --Away Team Wins by 4 goals 
     -- THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore < AwayScore AND ScoreDifference = -4 ORDER BY NEWID()) 
     -- WHEN TeamScore <= -71 --Away Team Wins by 5 goals 
     -- THEN (SELECT TOP 1 ScoreID FROM dbo.Score WHERE HomeScore < AwayScore AND ScoreDifference = -5 ORDER BY NEWID())  
    -- ELSE (SELECT TOP 1 ScoreID FROM dbo.Score WHERE ScoreDifference = 0 ORDER BY NEWID()) -- Draw 
    FROM dbo.Score s 
    LEFT JOIN dbo.ScoreReference sr 
    ON s.sr.ScoreReferenceId = sr.ScoreReferenceId 
) 
    FROM cte c 
) AS ScoreResult 
    ON f.FixtureID = ScoreResult.FixtureID 
--INNER JOIN Score s 
-- ON score.ScoreID = s.ScoreID 

예상 출력 :

Answer 1

난 당신이 무슨 말을 하려는지 전혀 확실하지 않다 달성하기 위해,하지만 perh 다음과 같은 aps는 모든 결과에 대해 ScoreDifference 일치가 보장되는 경우 도움이됩니다.

예를 들어 샘플 데이터 세트 등을 사용하여 구체적인 예를 제공 할 수 있습니까?

Answer 2

이 줄을 따라 뭔가를 시도해 볼 수 있습니다. 데이터가 없기 때문에 일부 테이블에서는 체크 아웃 할 수 없습니다. 그러나 몇 가지 조작으로이 작업을 시도해보고 알려주십시오.

SELECT 
    c.TeamScore 
    ,( SELECT 
      CASE 
      WHEN c.TeamScore BETWEEN HomeWeighting AND AwayWeighting AND HomeScore > AwayScore AND S.ScoreDifference = SF.ScoreDifference 
       THEN S.ScoreID 
      WHEN c.TeamScore BETWEEN AwayWeighting AND HomeWeighting AND HomeScore < AwayScore AND S.ScoreDifference = SF.ScoreDifference 
       THEN S.ScoreID 
      END 
     FROM dbo.Score S 
     LEFT JOIN dbo.ScoreReference SF 
      ON S.SF.ScorereferenceId = SF.ScorereferenceId 
     ) 
FROM cte c