Variante 1
SELECT matnr,
CASE meins
WHEN 'ST' THEN 'Stück'
WHEN 'KG' THEN 'Kg'
ELSE 'andere Einheit'
END AS meins_desc,
maktx
INTO TABLE @DATA(it_mara)
FROM marav.
cl_demo_output=>display( it_mara ).
Variante 2
SELECT matnr,
CASE
WHEN meins = 'ST' THEN 'Stück'
WHEN meins = 'KG' THEN 'Kg'
ELSE 'andere Einheit'
END AS meins_desc,
maktx
INTO TABLE @DATA(it_mara)
FROM marav.
cl_demo_output=>display( it_mara ).