Special Characters in Teradata - response (1) by rtakle_d

We are facing an urgent problem where we need to find out the special characters in a Teradata column. Do you know how can we find it?
The special character can be smiley/@#$%^&*/any winding font character. We don’t have a comprehensive list of special characters.
 
 
Below potion we can use …
 

1. We can make the column values as NULL which contains special character.
2. If there is any character which is NULL in any of DIAG_I_X field, then all the DIAG_I_X columns for that Claim key should be nullified.
3. This is to make sure that it’s better to return NO data rather than giving garbage data.

 
Here is suggested algorithm –
 
Check Colum  if it contains any special character –
                If yes then Update for this Claim key with NULL
                Else
                                Check for Colum for special character
                                                ----handle the scenario
 
Please help me out regarding below issue .if someone have solution please let me know