mysql>
mysql> CREATE TABLE PENALTIES
-> (PAYMENTNO INTEGER NOT NULL PRIMARY KEY,
-> EmployeeNO INTEGER NOT NULL,
-> PAYMENT_DATE DATE NOT NULL DEFAULT '1990-01-01',
-> AMOUNT DECIMAL(7,2) NOT NULL DEFAULT 50.00)
-> ;
Query OK, 0 rows affected (0.00 sec)
mysql> INSERT INTO PENALTIES
-> (PAYMENTNO, EmployeeNO)
-> VALUES (15, 27)
-> ;
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO PENALTIES
-> (PAYMENTNO, EmployeeNO, PAYMENT_DATE, AMOUNT)
-> VALUES (15, 27, DEFAULT, DEFAULT);
ERROR 1062 (23000): Duplicate entry '15' for key 'PRIMARY'
mysql>
mysql> drop table penalties;
Query OK, 0 rows affected (0.00 sec)
mysql>