Increment second column on key change

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Increment second column on key change

Author

Topic

jimib
Starting Member

3 Posts

Posted - 2014-07-21 : 14:11:25

I have a table like this:

1 a
2 a
3 b
4 b
5 b
6 c

and I need this:

1 a 1
2 a 2
3 b 1
4 b 2
5 b 3
6 c 1

can anyone help?

tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2014-07-21 : 14:17:56

Use the ROW_NUMBER() function for this.

Tara Kizer
SQL Server MVP since 2007
http://weblogs.sqlteam.com/tarad/

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