Iterating result of Select Query

Posted by user294146 on Stack Overflow See other posts from Stack Overflow or by user294146
Published on 2010-04-12T15:14:24Z Indexed on 2010/04/12 15:23 UTC
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Hi experts,

I have a question related to select query. here i am explaining down below.

i have a table with the following data

**Column1(Primary Key)      Column2         Column3**
------                     ---------       --------------
1                             C
2                             C
3                             Null 
4                             H
5                             L 
6                             H

my problem is i have to replace the value of Column3 with the corresponding value of Column1 for every occurrence of data "C", "H" and "L". Please provide me query related to this problem. how can i solve this using query or stored procedure. please elaborate the same.

I need final select query result as follows

**Column1(Primary Key)      Column2         Column3**
------                     ---------       --------------
1                             C                1
2                             C                2
3                             Null 
4                             H                4
5                             L                5
6                             H                6

Thanks & Regards, Murali

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