Hi Debasish,
You can create an implementation in the form FILL_OUTTAB_LINE as follows:
ENHANCEMENT 1 Z_RABEST_ALV01. "active version
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""$"$\SE:(7) Form FILL_OUTTAB_LINE, Start, Enhancement Z_RABEST_ALV01, Start A
data: l_nachn type pa0002-nachn,
l_vorna type pa0002-vorna.
CLEAR: l_nachn, l_vorna.
SELECT SINGLE nachn vorna from pa0002
into (l_nachn, l_vorna)
WHERE pernr = anlav-pernr.
ASSIGN COMPONENT 'S4' OF STRUCTURE <itab_line> to <field>.
<field> = l_nachn.
ASSIGN COMPONENT 'S5' OF STRUCTURE <itab_line> to <field>.
<field> = l_vorna.
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""$"$\SE:(8) Form FILL_OUTTAB_LINE, Start, Enhancement Z_RABEST_ALV01, End A
ENDENHANCEMENT.
