ORA-28060
        A data redaction policy already exists on this column.
        
        
        Cause
        A data redaction policy was already in existence on this column.
        Action
        Specify a column that does not already have a redaction policy defined on it, or use DBMS_REDACT.ALTER_POLICY to alter the existing redaction policy for this column.
        
     
    
    
        ORA-28060
        A data redaction policy already exists on this column.
        
        
        Cause
        A data redaction policy was already in existence on this column.
        Action
        Specify a colunm which does not already have a redaction policy defined on it, or use DBMS_REDACT.ALTER_POLICY to alter the existing redaction policy for this column.
        
     
    
    
        ORA-28060
        A data redaction policy already exists on this column.
        
        
        Cause
        A data redaction policy was already in existence on this column.
        Action
        Specify a colunm which does not already have a redaction policy defined on it, or use DBMS_REDACT.ALTER_POLICY to alter the existing redaction policy for this column.