[postgis-users] Select statement compare only alpha characters

[davidj2k]

Ok, nevermind I think I figured it out I used this

lower(regexp_replace(fieldname, '[[:digit:]]*[^[:alnum:]_]*', '', 'g'))

That seems to be working but if somebody thinks that is incorrect please let
me know


davidj2k wrote:
> 
> I am trying to make a select statement that compares the field to a value
> that is only alpha characters so here is the example
> This is the value in the database:   $%ABC_abc-123(abc)
> This is the value that I want to use to match that value:    abcabcabc
> 
> I tried using regexp_replace but it did not work the way I expected.  
> 
> select * from table where lower(regexp(fieldname, '[\d_\W]*', '')) =
> 'abcabcabc'
> 
> this regular expression works in C# but not in PostgreSQL
> 
> any suggestions
> 

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