SQL临时表成本75％插入

Question

我一直在寻找将表插入成本从75％降低到最低的方法。我认为我们要在插入之前创建临时表的一种方法，但这没有帮助，还有其他方法可以改善对临时表的插入。

@StartDate date = null,
@EndDate date = null

IF @StartDate IS NULL AND @EndDate IS NULL
BEGIN
    SET @StartDate = DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE()) + -12, 0)
    SET @EndDate = DATEADD(MILLISECOND, -3, DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE()), 0))


END

    SELECT CustomerId, LogDate, StartDate = @StartDate, EndDate = @EndDate
    INTO #Temp1
    FROM Log l
    where l.LogDate >= @StartDate and l.LogDate < dateadd(day, 1, @EndDate)

    select
    l.*,
    a.StateId, 
    a.CountryId
    into #Temp
    from #Temp1 l
    JOIN [Address] a ON a.CustomerId = l.CustomerId