Лезем дальше в таблицы. Пропускаю этап, где я определил, что id этого пассажира Passenger.id = 14, и что мы видим по нему в таблице Pass_in_trip? Видим, что на одном рейсе 7771 он купил 2 места! Поэтому COUNT(DISTINCT trip) = 3, а COUNT(*) = 4.
BY Налейте аналитику
Traders also expressed uncertainty about the situation with China Evergrande, as the indebted property company has not provided clarification about a key interest payment.In economic news, the Commerce Department reported an unexpected increase in U.S. new home sales in August.Crude oil prices climbed Friday and front-month WTI oil futures contracts saw gains for a fifth straight week amid tighter supplies. West Texas Intermediate Crude oil futures for November rose $0.68 or 0.9 percent at 73.98 a barrel. WTI Crude futures gained 2.8 percent for the week.
The S&P 500 slumped 1.8% on Monday and Tuesday, thanks to China Evergrande, the Chinese property company that looks like it is ready to default on its more-than $300 billion in debt. Cries of the next Lehman Brothers—or maybe the next Silverado?—echoed through the canyons of Wall Street as investors prepared for the worst.
Налейте аналитику from nl