Query to search Special character in word

The query looks for any special characters in column field (specially useful for password field) and reports it.  

SELECT DISTINCT employee,PASSWORD 
FROM
(SELECT employee,LENGTH(TRIM(TRANSLATE(password, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', ' '))) KEY,PASSWORD 
FROM table_name) 
WHERE KEY IS NOT NULL