performance key-value - int vs ascii ?

[walter harms]

Hi list,
I need to store what is basically a key-value pair. A few years ago i would have choosen
an integer as key and used a translation table to get the name (char[]) for the key.

Since diskspace is plenty i thinking about to use the name directly. does anyone has any
idea
what is the performance penalty ?

in short:

name char(20)         vs    code int      and a second table       code int
value int                   value int                              name char(20)


TIA,
  wh