SQL & PL/SQL

Hi,

By using regexp_like and regexp_replace, how to find non printable characters from a string.

Column1

000000000#

€˜0051400

would like to remove # and € and all special characters which are of €, which are not readable by the keyboard.

select * from table1 where REGEXP_LIKE(column1, '[^A-Z^a-z^0-9^[^.^{^}]' ,'x');

please advise.

Thanks

Aman