Done

dao/create_testdata.sql

 INSERT INTO person (id, navn, alder, adresse) VALUES
     (1, 'Hei Sveisen', 21, 'Gata 1'),
     (2, 'Hei Heisen', 22, 'Gata 2');
-INSERT INTO person (id, navn, alder, adresse) VALUES
-    (3, 'Hei Sveisene', 23, 'Gata 3'),
-    (4, 'Hei Heisene', 24, 'Gata 4');
-DELETE FROM person where id=3 or id=4;