Du bör använda två INSERT-kommandon; eller försök att använda en INSERT-trigger.
EDIT:
--Ett exempel med trigger:
CREATE TABLE dept(
id INT(11) NOT NULL AUTO_INCREMENT,
dept_name VARCHAR(255) DEFAULT NULL,
PRIMARY KEY (id)
)
ENGINE = INNODB;
CREATE TABLE emp(
id INT(11) NOT NULL AUTO_INCREMENT,
emp_name VARCHAR(255) DEFAULT NULL,
dept_id INT(11) DEFAULT NULL,
PRIMARY KEY (id),
CONSTRAINT FK_emp_dept_id FOREIGN KEY (dept_id)
REFERENCES dept (id) ON DELETE RESTRICT ON UPDATE RESTRICT
)
ENGINE = INNODB;
DELIMITER $$
CREATE TRIGGER trigger1
AFTER INSERT
ON dept
FOR EACH ROW
BEGIN
INSERT INTO emp VALUES (NULL, 'Someone', NEW.id);
END
$$
DELIMITER ;
-- Try to add new department.
INSERT INTO dept VALUES(NULL, 'Sales');
-- Is there new default employee?
SELECT * FROM emp;
+----+----------+---------+
| id | emp_name | dept_id |
+----+----------+---------+
| 1 | Someone | 1 |
+----+----------+---------+