|
|
|
|
|
|
|
|
|
:x |
|
:o |
|
select |
|
o_year, |
|
sum(case |
|
when nation = ':1' then volume |
|
else 0 |
|
end) / sum(volume) as mkt_share |
|
from |
|
( |
|
select |
|
extract(year from o_orderdate) as o_year, |
|
l_extendedprice * (1 - l_discount) as volume, |
|
n2.n_name as nation |
|
from |
|
part, |
|
supplier, |
|
lineitem, |
|
orders, |
|
customer, |
|
nation n1, |
|
nation n2, |
|
region |
|
where |
|
p_partkey = l_partkey |
|
and s_suppkey = l_suppkey |
|
and l_orderkey = o_orderkey |
|
and o_custkey = c_custkey |
|
and c_nationkey = n1.n_nationkey |
|
and n1.n_regionkey = r_regionkey |
|
and r_name = ':2' |
|
and s_nationkey = n2.n_nationkey |
|
and o_orderdate between date '1995-01-01' and date '1996-12-31' |
|
and p_type = ':3' |
|
) as all_nations |
|
group by |
|
o_year |
|
order by |
|
o_year; |
|
:n -1 |
|
|
