--SQL Server 2008 批量插入數據時，觸發器腳本實例
ALTER TRIGGER [dbo].[T_Name]
   ON  [dbo].[HT_CurrentTagRecord]
   AFTER INSERT
AS 
BEGIN
    -- SET NOCOUNT ON added to prevent extra result sets from
    -- interfering with SELECT statements.
    SET NOCOUNT ON;

    --INSERT
    BEGIN     
        declare @I_Code
 
 nvarchar(20);
        declare @I_CreateTime datetime;
        declare @I_WorkState int;
        
        declare MyCursor cursor for
        SELECT Code, CreateTime, WorkState FROM INSERTED 
        open MyCursor;
        fetch next from MyCursor into @I_Code, @I_CreateTime, @I_WorkState; --不判斷@I_CreateTime是否大於當前的StartTime了，因為批量發過來的數據中都是一個標簽一條數據
 

        while @@fetch_status=0    --循環讀取
        begin
            declare @Id int;        
            declare @Code nvarchar(20);
            declare @StartTime datetime;
            declare @StopTime datetime;
            
            if(exists(SELECT 1 FROM DBName.dbo.StaticsTable S WHERE Code = @I_Code
 
))
            begin
                SELECT top 1 @Id = Id, @Code = S.Code, @StartTime = S.StartTime, @StopTime = S.StopTime  --查詢StaticsTable中最新的記錄
                FROM DBName.dbo.StaticsTable S
                WHERE Code = @I_Code
                order by S.Id desc;
            
                --分析：
                --如果最新的記錄的終止統計時間（即StopTime）為空，說明該時間段設備還沒關機
                --如果最新的記錄的終止統計時間（即StopTime）不為空，說明該時間段設備已關機
                
                --如果是新增的記錄是 "關機" 數據記錄
                if(@I_WorkState = 0)
                begin
                    if(ISNULL(@StopTime,‘‘) = ‘‘)  --如果最新的記錄的終止統計時間為空，說明該時間段的統計還沒結束，則讓其終止
                    begin
                        update DBName.dbo.StaticsTable set StopTime=@I_CreateTime,UseMinuteTime = DATEDIFF(n, @StartTime, @I_CreateTime) where Id = @Id;
                    end
                end
                else if(@I_WorkState = 1) --如果是新增的記錄是 "開機" 數據記錄
                begin
                    if(ISNULL(@StopTime,‘‘) = ‘‘)  --如果最新的記錄的終止統計時間為空，說明該時間段的統計還沒結束，則刷新該記錄的使用時長
                    begin
                        if(ISNULL(@StartTime,‘‘) = ‘‘)
                        begin
                            update DBName.dbo.StaticsTable set StartTime = @I_CreateTime, UseMinuteTime = 0 where Id = @Id;
                        end
                        else
                        begin
                            update DBName.dbo.StaticsTable set UseMinuteTime = DATEDIFF(n, @StartTime, @I_CreateTime) where Id = @Id;
                        end
                    end
                    else --如果最新的記錄的終止時間不為空，表示該時間的統計已終止，則創建一條新的統計記錄
                    begin
                        Insert into DBName.dbo.StaticsTable values(@I_Code, @I_CreateTime, null, 0);
                    end
                end
            end
            else
            begin --如果StaticsTable表中未找到相應的記錄，則插入一條初始記錄
                Insert into DBName.dbo.StaticsTable values(@I_Code, @I_CreateTime, null, 0);
            end
            
            fetch next from MyCursor into @I_Code, @I_CreateTime, @I_WorkState;
        end;
        close MyCursor;
        deallocate MyCursor;
    END
END

SQL Server 2008 批量插入數據時觸發器腳本實例