INTELLIGENT WORK FORUMS
FOR COMPUTER PROFESSIONALS
Come Join Us!
Are you a
Computer / IT professional?
Join Tek-Tips now!
- 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.
Partner With Us!
"Best Of Breed" Forums Add Stickiness To Your Site
(Download This Button Today!)
Feedback
"...I signed up to your site to get help with a problem and I am so glad I did. I found the help I needed immediately. Thanks to all who contribute to your site..."
Geography
Where in the world do Tek-Tips members come from?
|
Microsoft SQL Server: Programming FAQ
|
T-SQL Hints and Tips
|
How to add sequence number within groups of repeating values
Posted: 7 Apr 04 (Edited 11 Jul 04)
|
The Problem
This has been asked in various forms a number of times. It occurs when you have groups of numbers in a column e.g.
SomeColumn
---------
101
101
102
102
102
102
103
104
104
104
and you want to apply a sequence number within each group of numbers, starting at 1 again for each instance of a new group, so your resulting data will look like this;
SomeColumn Sequence
---------- --------
101 1
101 2
102 1 )
102 2 ) An ascending sequence number is created
102 3 ) for each group of numbers e.g. '102'
102 4 )
103 1
104 1
104 2
104 3
The Solution
Note: After some useful discussions on various threads I've decided to remove my original solution and point you toward the threads containing much better solutions by ESquared, Donutman, NigelRivett and others;
ESquared & Donutman's solution;
Thread183-859372
NigelRivetts solution, without requiring temp tables;
Thread183-859742
Happy coding,
Nathan |
Back to Microsoft SQL Server: Programming FAQ Index
Back to Microsoft SQL Server: Programming Forum
|
|
 |
|
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:
Talk To Other Members- Notification Of Responses To Questions
- Favorite Forums One Click Access
- Keyword Search Of All Posts, And More...
Register now while it's still free!
Already a member? Close this window and log in.
Join Us Close
