| ==== |
| ---- QUERY: TPCH-Q8 |
| # Q8 - National Market Share Query |
| select |
| o_year, |
| sum(case |
| when nation = 'BRAZIL' |
| then volume |
| else 0 |
| end) / sum(volume) as mkt_share |
| from ( |
| select |
| year(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 = 'AMERICA' |
| and s_nationkey = n2.n_nationkey |
| and o_orderdate between '1995-01-01' and '1996-12-31' |
| and p_type = 'ECONOMY ANODIZED STEEL' |
| ) as all_nations |
| group by |
| o_year |
| order by |
| o_year |
| ---- RESULTS |
| 1995,0.034436 |
| 1996,0.041486 |
| ---- TYPES |
| int, decimal |
| ==== |
