Question

我需要你的帮助。

我有两张表MasterEntries和Awardlist。 MasterEntries有某些事件的排名结果，例如1,2,3,4,5,6。我想使用T-SQL触发器从MasterEntries NABELY 1,2,3中选择并插入排名，并将其插入{{1}中的类似列（排名）中} table ONLY WHEN 与相应事件相关的记录数达到6。

以下是我的表结构：

AwardList表

MasterEntries

[EntryID] INT IDENTITY(1, 1) NOT NULL, [CompetitiveEventCode] NVARCHAR(5) NULL, [CompetitiveEventName] NVARCHAR(40) NULL, [CategoryDescription] NVARCHAR(25) NULL, [YearOfEvent] NVARCHAR(50) NULL, [CompetitorID] INT NOT NULL, [FirstName] NVARCHAR(20) NULL, [LastName] NVARCHAR(20) NULL, [Institution] NVARCHAR(50) NULL, [ParishName] NVARCHAR(15) NULL, [Region] NVARCHAR(12) NULL, [Participated] NVARCHAR(3) NULL, [AccumulatedMarks] DECIMAL(5, 2) NULL, [AverageMark] DECIMAL(5, 2) NULL, [Ranked] INT NULL, [PointsEarned] INT NULL, [AwardPlacing] CHAR(4) NULL, CONSTRAINT [PK_MasterEntries] PRIMARY KEY CLUSTERED ([EntryID] ASC)表

Awardlist

我尝试了以下查询

[AwardID]              INT           IDENTITY (1, 1) NOT NULL,
[CompetitiveEventName] NVARCHAR(40)  NULL,
[CategoryDescription]  NVARCHAR(255) NULL,
[FirstName]            NVARCHAR(20)  NULL,
[LastName]             NVARCHAR(20)  NULL,
[Institution]          NVARCHAR(50)  NULL,
[ParishName]           NVARCHAR(15)  NULL,
[Region]               NVARCHAR(12)  NULL,
[AverageMark]          DECIMAL(5, 2) NULL,
[Ranked]               INT           NULL,
[AwardPlacing]         CHAR(4)       NULL, 
[CompetitiveEventCode] NVARCHAR(5)   NULL

还

CREATE TRIGGER Insert_Award_list_FROM_MasterEntries
ON MasterEntries
AFTER INSERT, UPDATE
AS
    DECLARE @rankedcount INT,
            @CompetitiveEventCode NVARCHAR(5), 
            @CompetitiveEventName NVARCHAR(40),
            @CategoryDescription NVARCHAR(25), 
            @FirstName NVARCHAR(2), 
            @LastName NVARCHAR(25), 
            @ParishName NVARCHAR(15),  
            @Region NVARCHAR(12), 
            @Institution NVARCHAR(50),  
            @AverageMark INT,
            @Ranked INT, 
            @AwardPlacing NVARCHAR(4)

    SELECT @rankedcount = Count(CompetitiveEventCode)
    FROM MasterEntries
    WHERE CompetitiveEventCode = 'AGPRO' 
      AND Ranked = 1 AND Ranked = 2 And Ranked = 3;

    IF @rankedcount = 6
    BEGIN
        INSERT INTO AwardList(CompetitiveEventCode, CompetitiveEventName, CategoryDescription, FirstName, LastName, ParishName,
                              Region, Institution, AverageMark, Ranked, AwardPlacing)
        VALUES (@CompetitiveEventCode, @CompetitiveEventName, @CategoryDescription, @FirstName, @LastName, @ParishName,
                @Region, @Institution, @AverageMark, @Ranked, @AwardPlacing);

    END;

请帮我解决这个问题，因为上述触发器都没有给我结果，请

Answer 1

我认为问题在于这段代码

WHERE CompetitiveEventCode = 'AGPRO' AND Ranked = 1 AND Ranked = 2 And Ranked = 3;

是否可以同时在1,2和3级中使用相同的CompetitiveEventCode（即'AGPRO'）？根据条件 @rankedcount 将在满足所有条件时计算。

使用触发器插入更新值

1 个答案: