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Home > Forums > Programmers > DBMS Packages > Microsoft SQL Server: Programming Forum

Adding Sequential Number to a repeating record

thread183-1682578
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mrodonis (Programmer)
8 May 12 11:15
thread183-859372: Re: FAQ: How to add sequence number within groups of repeating values

The original thread does what I need when the repeated record is an Integer, but I need this when the record is a varchar. For example, I have the following client_tag field, where I need to add a sequential number for each record that is the identical, restarting the sequence for each new Client_Tag.

Client_Tag    Seq (Need to add this column)

AA00001224    1
AA00001224    2
AA00001224    3
BB00001234    1
CC00001233    1
CC00001233    2

I appreciate any assistance with this.
Thanks!
simian336 (Programmer)
8 May 12 14:26
look at the rank function in bol.

Simi
imex (Programmer)
8 May 12 14:37
Try something like this:

CODE

select
    Client_Tag,
    ROW_NUMBER() OVER(PARTITION BY Client_Tag ORDER BY Client_Tag) AS Seq
from MyTable

Hope this helps.
 

Imoveis em Guarulhos

mrodonis (Programmer)
10 May 12 9:31
Imex,
Thanks so much, that worked perfectly!

 
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