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How to update part of varchar column

 
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byhalia
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Joined: 30 Aug 2006
Posts: 9
Topics: 3
PostPosted: Wed Oct 18, 2006 3:10 pm    Post subject: How to update part of varchar column Reply with quote
Before letting this Q here i have checked the forum and found this

http://www.mvsforums.com/helpboards/viewtopic.php?t=6378&highlight=update

it did not worked as the field i am updating is varchar of length 256.

i need to put a constant of XXX in the first three bytes no matter whatever is in rest 4 to 256 bytes.

Thanks
Byhalia
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byhalia
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Joined: 30 Aug 2006
Posts: 9
Topics: 3
PostPosted: Wed Oct 18, 2006 3:11 pm    Post subject: Reply with quote
can this happen in a single query. any number of queries how should i do it.
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kolusu
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Joined: 26 Nov 2002
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Location: San Jose
PostPosted: Wed Oct 18, 2006 4:00 pm    Post subject: Reply with quote
byhalia,


Try this

Code:

UPDATE TABLE                                         
   SET your_varchar_col = 'XXX' CONCAT SUBSTR(your_varchar_col,4,253);     


Hope this helps...

Cheers

Kolusu
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byhalia
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Joined: 30 Aug 2006
Posts: 9
Topics: 3
PostPosted: Fri Oct 20, 2006 5:39 am    Post subject: Thanks Reply with quote
it is working.
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