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41 lines
859 B
SQL
41 lines
859 B
SQL
select
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supp_nation,
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cust_nation,
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l_year,
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sum(volume) as revenue
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from
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(
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select
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n1.n_name as supp_nation,
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n2.n_name as cust_nation,
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substr(l_shipdate, 1, 4) as l_year, -- modified not to include date_part('year', l_shipdate)
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l_extendedprice * (1 - l_discount) as volume
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from
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supplier,
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lineitem,
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orders,
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customer,
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nation n1,
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nation n2
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where
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s_suppkey = l_suppkey
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and o_orderkey = l_orderkey
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and c_custkey = o_custkey
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and s_nationkey = n1.n_nationkey
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and c_nationkey = n2.n_nationkey
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and (
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(n1.n_name = 'ROMANIA' and n2.n_name = 'INDIA')
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or (n1.n_name = 'INDIA' and n2.n_name = 'ROMANIA')
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)
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and l_shipdate between
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cast('1995-01-01' as datetime) and cast('1996-12-31' as datetime)
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) as shipping
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group by
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supp_nation,
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cust_nation,
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l_year
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order by
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supp_nation,
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cust_nation,
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l_year;
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