MAP

Question

我有两张桌子。

MAP

 Product    Channel  Date   Advt Time 
Air    Pix  30-04-2011  22:23:16
Air    Pix  30-04-2011  23:55:08

MBA

 Product    Channel Date    StartTime EndTime 
Air    Pix  30-04-2011  22:00:00   01:00:00
Air    Pix  30-04-2011  23:00:00   02:00:00

我必须检查MAP中的AdvtTime是否在StartTime和amp;之间。 MBA表中的EndTime。

我使用了以下查询

select distinct * 
from MAP 
inner join MBA on (MAP.Channel     = MBA.Channel 
                   and MAP.Product = MBA.Product 
                   and MAP.ProgDate=MBA.ProgDate) 
where AdvtTime between ti and tii
order by Channel asc

但是随着结束时间延长到第二天它没有结果。请帮助我进一步了解。

我想：

22:23:16将22:00:00与01:00:00和
23:55:08将23:00:00与02:00:00匹配。

Answer 1


select distinct * 
from MAP 
inner join MBA on (MAP.Channel     = MBA.Channel 
                   and MAP.Product = MBA.Product 
                   and MAP.ProgDate=MBA.ProgDate) 
where (AdvtTime between ti and tii) or (AdvTime between ti and DATEADD(hh, DATEDIFF(HH,AdvTime, tii),tii))
order by Channel asc

Answer 2

以下查询应该为您提供所需的答案：

SELECT DISTINCT *
FROM MAP
INNER JOIN MBA
ON MAP.Channel = MBA.Channel
AND MAP.Product = MBA.Product
WHERE (MAP.Date = MBA.Progdate
       AND AdvtTime >= StartTime
       AND (AdvtTime <= EndTime OR EndTime < StartTime))
      OR
      (MAP.Date = dateadd(DAY,1,MBA.ProgDate) -- extended from yesterday
       AND EndTime < StartTime                -- iff EndTime < StartTime
       AND AdvtTime <= EndTime)
ORDER BY MBA.Channel ASC

请参阅http://www.sqlfiddle.com/#!6/1e49f/1/0进行测试。

但是，最好将日期和时间组合到datetime字段中，然后在需要时提取单独的部分以用于演示目的。

Answer 3

此外，您可以使用此选项与简单的JOIN

SELECT DISTINCT *
FROM dbo.map m JOIN dbo.mba m2 ON m.Product = m2.Product
                                 AND m.Channel = m2.Channel
                                 AND m.[Date] = m2.[Date]
                                 AND (m.[Advt Time] > m2.[StartTime] AND m2.[StartTime] > m2.[EndTime] 
                                   OR  m.[Advt Time] BETWEEN m2.[StartTime] AND m2.[EndTime])

SQLFiddle上的演示

SQL时间延长到第二天

MAP

MBA

3 个答案: