ABAP Report with for all entries

Here for the reference INNERJOIN is there commented and youu can compare both FOR ALL ENTRIES AND innerjoin.

tables: vbak, vbap.
select-options: s_vbeln for vbak-vbeln.

types:
begin of t_vbak,
vbeln like vbak-vbeln,
erdat like vbak-erdat,
ernam type vbak-ernam,
netwr type vbak-netwr,
end of t_vbak,

begin of t_vbap,
vbeln like vbap-vbeln,
posnr like vbap-posnr,
arktx type vbap-arktx,
matnr like vbap-matnr,
meins like vbap-meins,
end of t_vbap,

begin of lt_report,
vbeln like vbak-vbeln,
erdat like vbak-erdat,
ernam type vbak-ernam,
netwr type vbak-netwr,
posnr like vbap-posnr,
arktx type vbap-arktx,
matnr like vbap-matnr,
meins like vbap-meins,
end of lt_report.

data:
li_vbak type t_vbak occurs 0 with header line,
li_vbap type t_vbap occurs 0 with header line,
t_report type lt_report occurs 0 with header line.

at selection-screen.

start-of-selection.
select vbeln erdat ernam netwr
from vbak
into table li_vbak where vbeln in s_vbeln.

if not li_vbak[] is initial.
sort li_vbak by vbeln.
DELETE ADJACENT DUPLICATES FROM li_vbak.

select vbeln posnr arktx matnr meins
from vbap
into table li_vbap
for all entries in li_vbak
where vbeln = li_vbak-vbeln.

endif.

+*select a~vbeln a~erdat a~ernam a~netwr+
+*       b~posnr b~arktx b~matnr b~meins+
+*       into table t_report+
+*       from vbak as a inner join vbap as b+
+*       on a~vbeln = b~vbeln+
+*       where a~vbeln in s_vbeln.+

loop at li_vbap.
t_report-vbeln = li_vbap-vbeln.
t_report-posnr = li_vbap-posnr.
t_report-arktx = li_vbap-arktx.
t_report-matnr = li_vbap-matnr.
t_report-meins = li_vbap-meins.

read table li_vbak with key vbeln = li_vbap-vbeln.
if sy-subrc = 0.
t_report-vbeln = li_vbak-vbeln.
t_report-erdat = li_vbak-erdat.
t_report-ernam = li_vbak-ernam.
t_report-netwr = li_vbak-netwr.
endif.

append t_report.
clear li_vbap.
endloop.
refresh: li_vbak, li_vbap.
sort t_report by vbeln.
DELETE ADJACENT DUPLICATES FROM t_report.

end-of-selection.
sort t_report by vbeln.
loop at t_report.
write: / t_report-vbeln, t_report-erdat, t_report-ernam,
t_report-netwr, t_report-posnr, t_report-arktx,
t_report-matnr, t_report-meins.
endloop.

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