spring-boot/spring-boot-samples/spring-boot-sample-data-jdbc/src/main/resources/data.sql

INSERT INTO CUSTOMER (ID, FIRST_NAME, DATE_OF_BIRTH) values (1, 'Meredith', '1998-07-13');
INSERT INTO CUSTOMER (ID, FIRST_NAME, DATE_OF_BIRTH) values (2, 'Joan', '1982-10-29');