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Old ways aren't always bad Vern. He may not want to replace an underscore
later in the string - just at the beginning.
Rob Berendt
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Vernon Hamberg
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09/28/2007 09:03 AM
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Re: SQL UPDATE WHERE question
Mark
If you are fairly current on the OS level and there will be no other
underscores, there is a replace() function now.
Update filename set field = replace(field, '_', '#') where
substr(field, 1, 1) = '_'
Not sure of the order of the parameters - and maybe the "field" can
be an expression, like a substring - don't know.
Otherwise, there is the old way -
update filename set field = '#' || substr(field, 2) where
substr(field, 1, 1) = '_'
HTH
Vern
At 07:57 AM 9/28/2007, you wrote:
Is there a way to update a substring of one column?list
I would like to replace the first character of a 10-character field with
say "#" where ever that first byte is say "_" in a column.
Can I do this with an UPDATE ... WHERE ...?
Thanks.
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