INTELLIGENT WORK FORUMS
FOR COMPUTER PROFESSIONALS

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.

Jobs

Enumerate (count) records in groups

Enumerate (count) records in groups

(OP)
I have a table that stores (among other things) district number and order number.  Each order can have multiple transaction dates (each time it has been touched).  What I need is a SELECT statement that can give me an ascending sequence for each record grouped by district and order.

So if the columns are: district, order, tr_date

And the data might look like this:
0021, 00001111, 01/12/09
0021, 00001111, 01/15/09
0021, 00001111, 01/23/09
0021, 00001213, 01/14/09
0021, 00001213, 01/16/09
0018, 00001019, 12/27/09

Would need to look like this:
0021, 00001111, 01/12/09, 1
0021, 00001111, 01/15/09, 2
0021, 00001111, 01/23/09, 3
0021, 00001213, 01/14/09, 1
0021, 00001213, 01/16/09, 2
0018, 00001019, 12/27/09, 1

Any ideas?

RE: Enumerate (count) records in groups

(OP)
I think I figured it out:

CODE

select
     t1.district,
     t1.order_no,
     t1.tr_date,
     sum(case when t2.tr_date <= t1.tr_date then 1 else 0 end) as tr_seq
from
     tbl_example t1
     inner join
     (select
          district,
          order_no,
          tr_date
     from
          tbl_example) t2
          on
          t1.district = t2.district
          and
          t1.order_no = t2.order_no
group by
     t1.district,
     t1.order_no,
     t1.tr_date

It seems to work, at least.

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!

Resources

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