Delete non-alphanumberic characters?

I have a description with non alphanumeric such as column
'®' , '°' . I want to check for these types of characters in my query and remove them.

Thank you

Suppose you havie 10g

with data AS (SELECT 'Gaga97#guru' x
                FROM dual)
SELECT regexp_replace(x,'([^[:alnum:]])')
FROM data
/

Tags: Database

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