R3
2
S8
S9
R3
1
S9
S10
R3
1
RouteT0定義如下:
RouteT0
create view RouteT0
as
select
sr1.Stop as StartStop, —啟始站點
sr2.Stop as EndStop, —目的站點
sr1.Route as Route, —乘坐線路
sr2.Position-sr1.Position as StopCount —經過的站點數
from
stop_route sr1,
stop_route sr2
where
sr1.Route=sr2.Route
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