Thursday, March 29, 2012

DATE RANGE ISSUE

Hi All,
I have below table structure:
ItemID Price FromDate
ToDate
-----
1 10.00 01/01/2005
12/31/2005
1 9.00 01/01/2004
12/31/2004
2 2.00 01/01/1900
01/01/9999
-----
Now I need to write a query to get price for all the items for the date
range 01/01/2005 to 12/31/2005
If I use FromDate >= 01/01/2005 and ToDate <= 01/01/2005 then I will get
only one record (ItemID=1). But ItemID =2 also lies in the same daterange,
ie, daterange specified lies between 1900 and 9999. But the query will not
give that result.
Please let me know how to get this record also.
Thanks in advance"Ram" <Ram@.discussions.microsoft.com> wrote in message
news:628A35F2-9F1E-4E5A-B095-E5A45470CC84@.microsoft.com...
> Hi All,
> I have below table structure:
> ItemID Price FromDate
> ToDate
> -----
> 1 10.00 01/01/2005
> 12/31/2005
> 1 9.00 01/01/2004
> 12/31/2004
> 2 2.00 01/01/1900
> 01/01/9999
> -----
> Now I need to write a query to get price for all the items for the date
> range 01/01/2005 to 12/31/2005
>
> If I use FromDate >= 01/01/2005 and ToDate <= 01/01/2005 then I will get
> only one record (ItemID=1). But ItemID =2 also lies in the same daterange,
> ie, daterange specified lies between 1900 and 9999. But the query will not
> give that result.
>
The only records your query should return are ones with a date of
01/01/2005. I'm not sure how it's returning ItemID 1
ItemID=2 does not lay within that same daterange.
It's fromdate 01/01/1900 is less than 01/01/2005 and it's Todate, is greater
than 01/01/2005.
With the AND, you're asking for stuff BETWEEN 01/01/2005 and 01/01/2005.
ItemID=2 exceeds this range on both ends.
I suspect you want OR?
> Please let me know how to get this record also.
> Thanks in advance
>
--
Greg Moore
SQL Server DBA Consulting
Email: sql (at) greenms.com http://www.greenms.com|||On Mar 14, 9:49 am, Ram <R...@.discussions.microsoft.com> wrote:
> Hi All,
> I have below table structure:
> ItemID Price FromDate = > ToDate
> ----=--=AD--
> 1 10.00 01/01/2005 = > 12/31/2005
> 1 9.00 01/01/2004 = > 12/31/2004
> 2 2.00 01/01/1900 = > 01/01/9999
> ----=--=AD--
> Now I need to write a query to get price for all the items for the date
> range 01/01/2005 to 12/31/2005
> If I use FromDate >=3D 01/01/2005 and ToDate <=3D 01/01/2005 then I will =get
> only one record (ItemID=3D1). But ItemID =3D2 also lies in the same dater=ange,
> ie, daterange specified lies between 1900 and 9999. But the query will not
> give that result.
> Please let me know how to get this record also.
> Thanks in advance
I think you are storing dummy values in fromdate and todate column
when it is unknown (NULL)
If that is the case
(FromDate >=3D 01/01/2005 and ToDate < '01/01/2006' )
OR
FromDate >=3D 01/01/1900 and ToDate <=3D '01/01/9999' )
Note: < 01/01/2006 instead of <=3D 12/31/2005' to take care of time
portion
M A Srinivas

No comments:

Post a Comment