CREATE TABLE kosten
(
	beschreibung CHARACTER VARYING,
	projekt_id INTEGER,
	betrag NUMERIC(6,2)
);

INSERT INTO kosten VALUES
	('Telefon', 1, 98.5),
	('Reisekosten', 1, 466.20),
	('Material', 1, 235.60),
	('Reisekosten', 2, 120.60),
	('Material', 2, 32.20);