INSERT INTO customers (ID, NAME, SURNAME, CITY, PLZ)
VALUES(1, 'Egger', 'Stefan', 'St. Gallen', '9000')
VALUES(2, 'Müller', 'Sepp', 'St.Gallen', '9000')
VALUES(3, 'Kurt', 'Kurtl', 'St. gallen', '9000')
VALUES(3, 'Kurt', 'Kurtl', 'St.gallen', '9000')