Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

finding distinct values in a partition query

finding distinct values in a partition query

finding distinct values in a partition query

I have a data set that looks something like this in a table

storeID      DealerCD      DealerName      DealerPermit
-------      --------      ----------      ----------
1111          980038         John           PAC
1111          980041         Bill           NAC
1111          980041         Bill           TTR
1131          987789         Greg           PAC
1131          983434         Rudy           PAC
1131          988232         Amy            NAC
1131          988234         Chris          NAC

What I want is this.

storeID      DealerCD      DealerName      DealerPermit Count
-------      --------      ----------      ----------   -----
1111          980038         John           PAC          2
1111          980041         Bill           NAC          2
1111          980041         Bill           TTR          2
1131          987789         Greg           PAC          4
1131          983434         Rudy           PAC          4
1131          988232         Amy            NAC          4
1131          988234         Chris          NAC          4

What I want to do is partition by storeID and for each store I want to count the distinct dealers in that store. The query that I have is something like this

select storeID, DealerCD,DealerName,DealerPermit,
count(DealerCD) over (partition by storeid) from Mytable
group by storeID, DealerCD, DealerName, DealerPermit.

what I am getting is for storeID 1111 I am getting the count as 3 and for storeID 1131 as 4. I want to get the count=2 for storeID = 1111 since there are only two distinct dealers working in that store.

Any help would be highly appreciated.


RE: finding distinct values in a partition query

Maybe something like:

select storeID, DealerCD,DealerName,DealerPermit,
       (SELECT COUNT(DISTINCT DealerName) FROM Mytable
        where Mytable.storeID = M.storeID)
from Mytable as M

RE: finding distinct values in a partition query

Thanks JarlH, the query works on other databases but unfortunately this doesnot work on Teradata. sorry should have mentioned that earlier.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close