Question

我正在使用SQL Server中的失败指示器。

如果planned_receive_date在12:00之前，则receive_date必须在同一天。

如果planned_receive_date在12:00之后，则receive_date可以在第二天之前。

我已经走到了这一步。我需要时间来决定它是在12.00之前还是之后。

但在计算失败时我只需要一天。并计算到小时

示例：

planned_receive_date 9/3/2014 6:10:00 AM
receive_date 9/4/2014 9:57:00 AM

它的计算失败（因为几小时）而且应该没问题（因为几天）。周末除外。我到目前为止得到了这个：

  (case when (planned_receive_date > DATEADD(HH, 12, DATEDIFF(D, 0, planned_receive_date))) 
THEN
(case 
    when datename(dw,planned_receive_date) = 'Friday' 
    then 
        (case 
       when receive_date > DATEADD(HH, 24, DATEDIFF(D, 0, (planned_receive_date+3))) 
       then 'FAILED' 
       ELSE 'OK' end)
    when datename(dw,planned_receive_date) = 'Saturday' 
    then
        (case when receive_date > DATEADD(HH, 24, DATEDIFF(D, 0, (planned_receive_date+2))) 
       then 'FAILED' 
       ELSE 'OK' end)
    when datename(dw,planned_receive_date) = 'Sunday' 
    then 
        (case when receive_date > DATEADD(HH, 24, DATEDIFF(D, 0, (planned_receive_date+1))) 
       then 'FAILED' 
       ELSE 'OK' end)
else 
(CASE
 WHEN DATEADD(HH, 0, DATEDIFF(D, 0, receive_date)) = DATEADD(HH, 0, DATEDIFF(D, 0, planned_receive_date)) 
 THEN    'OK'
        ELSE
        (case 
       when receive_date > DATEADD(HH, 24, DATEDIFF(D, 0, planned_receive_date)) 
       then 'FAILED' 
       ELSE 'OK' end)
    END)        
end)
ELSE
    (CASE 
    WHEN DATEADD(HH, 0, DATEDIFF(D, 0, receive_date)) > DATEADD(HH, 0, DATEDIFF(D, 0, planned_receive_date))  
    THEN  'FAILED'
        ELSE  'OK'
    END)
END) 
as failed_indicator

Answer 1

我认为这可以满足您的要求，希望您可以相对轻松地阅读我对每个部分的了解：

CASE WHEN receive_date <
    DATEADD(day,DATEDIFF(day,0,planned_receive_date),
        1+ --End of the planned day + ...
            CASE
                WHEN DATEPART(hour,planned_receive_date) < 12 THEN 0 --That day only
                ELSE
                    CASE DATEPART(weekday,planned_receive_date)
                        WHEN DATEPART(weekday,'20141209') THEN 3 --Friday
                        WHEN DATEPART(weekday,'20141210') THEN 2 --Saturday
                        ELSE 1 --Next day
                    END
            END
     )
THEN 'OK'
ELSE 'FAILED'
END

那里的两个常数日期应该保持原样。我知道它最初可能看起来像是硬编码的东西只能在本周末使用，但实际上关于它们的唯一重要部分是我碰巧知道它们是（任意的）星期五和星期六。通过这样做，我不需要知道有效的DATEFIRST设置或（在原始代码中）语言设置有效。

几小时内的情况

1 个答案: