I love how the example SQL query uses abbreviated columns that sound like runes:
select
-- count(*)
a.mandt, b.rldnr, a.bukrs, a.gjahr, a.belnr, b.docln, a.buzei
-- *
from BSEG as a
innerjoin ACDOCA as b
on b.rclnt = a.mandt
and b.rbukrs = a.bukrs
and b.gjahr = a.gjahr
and b.belnr = a.belnr
where a.mandt = '715'
and b.rldnr = '0L'
and b.docln = '000001'
and a.buzei = '001'
and a.gjahr = '2018'
--and a.gjahr = '2017'
--and a.gjahr = '2019'
--order by a.mandt, b.rldnr, a.bukrs, a.gjahr, a.belnr, b.docln, a.buzei
limit 200;
Just realised this is probably from German too, "jahr" being year.