INSERT INTO AT_plz_dest (plz, okz, dest)
VALUES (2241,  3560, 'Schönkirchen-Reyersdorf'),
       (2165,  5013, 'Drasenhofen'),
       (2134,  5115, 'Staatz-Kautendorf');

UPDATE AT_ort SET name = 'Etzmannsdorf am Kamp' WHERE okz = 3938;

DELETE FROM AT_plz_dest WHERE (plz, okz) = (2231,  5011);