Using AUTO_INCREMENT
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/*
mysql> SELECT * FROM Employee;
+----+-------+
| id | name |
+----+-------+
| 1 | Joe |
| 2 | Yin |
| 3 | peng |
| 4 | Lava |
| 5 | White |
| 6 | Ola |
+----+-------+
6 rows in set (0.02 sec)
*/
/* AUTO_INCREMENT : used to generate a unique identity for new rows:
*/
Drop table Employee;
CREATE TABLE Employee (
id MEDIUMINT NOT NULL AUTO_INCREMENT,
name CHAR(30) NOT NULL,
PRIMARY KEY (id)
);
INSERT INTO Employee (name) VALUES ('Joe'),
('Yin'),
('peng'),
('Lava'),
('White'),
('Ola');
SELECT * FROM Employee;
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