Используя таблицы Income и Outcome, для каждого пункта приема определить дни, когда был приход, но не было расхода и наоборот.

Задание: 64 (Serge I: 2010-06-04)

Вывод: пункт, дата, тип операции (inc/out), денежная сумма за день.

SELECT i1.point, i1.date, 'inc', sum(inc) FROM Income,
(SELECT point, date FROM Income
EXCEPT
SELECT Income.point, Income.date FROM Income
JOIN Outcome ON (Income.point=Outcome.point) AND
(Income.date=Outcome.date)
) AS i1
WHERE i1.point=Income.point AND i1.date=Income.date
GROUP BY i1.point, i1.date
UNION
SELECT o1.point, o1.date, 'out', sum(out) FROM Outcome,
(SELECT point, date FROM Outcome
EXCEPT
SELECT Income.point, Income.date FROM Income
JOIN Outcome ON (Income.point=Outcome.point) AND
(Income.date=Outcome.date)
) AS o1
WHERE o1.point=Outcome.point AND o1.date=Outcome.date
GROUP BY o1.point, o1.date

Все задачи и решения: https://exercises-on-sql.blogspot.com/2017/02/select-sql.html