Free form example to setup a lookup table in an rpg program.

I would like a free form example to setup a lookup table in an rpg program

It would have 2 columns... Warehouse (2a) and Dunns code (9a)
Warehouse would be used to lookup the Dunns code
Warehouse entries would be unique, Dunns codes may duplicate.
(I know i could make a table to do this but trying to exercise my brain
:-)
I would like to initialize the entries in the d-specs.

Any example I can adapt to this is appreciated.

I am looking to replace the old code below.

Thanks for any help or direction.

John

<old code>
d-specs:
d TABWHS s 2 dim(15) ctdata perrcd(1)
d TABDUN s 9 dim(15) alt(TABWHS)
c-specs:
c s2whs lookup TABWHS TABDUN 61 (EQ)
data:
** Warehouse/DUNS # tables
10006477244
18612726414
20612726414
25612726414
30187812631
40006198980
51006477244
54043835454
59043835454
60006477244
64926463431
75588109301
80006477244
85926463431
88545318045
</old code>
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