LAST_INSERT_ID() is connection-specific.
mysql>
mysql> CREATE TABLE employee (
-> id MEDIUMINT NOT NULL AUTO_INCREMENT,
-> name CHAR(30) NOT NULL,
-> PRIMARY KEY (id)
-> );
Query OK, 0 rows affected (0.05 sec)
mysql>
mysql> desc employee;
+-------+--------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------+--------------+------+-----+---------+----------------+
| id | mediumint(9) | NO | PRI | NULL | auto_increment |
| name | char(30) | NO | | | |
+-------+--------------+------+-----+---------+----------------+
2 rows in set (0.01 sec)
mysql>
mysql> INSERT INTO employee (name) VALUES ('A');
Query OK, 1 row affected (0.00 sec)
mysql>
mysql> SELECT * FROM employee;
+----+------+
| id | name |
+----+------+
| 1 | A |
+----+------+
1 row in set (0.00 sec)
mysql>
mysql> select LAST_INSERT_ID();
+------------------+
| LAST_INSERT_ID() |
+------------------+
| 1 |
+------------------+
1 row in set (0.00 sec)
mysql>
mysql> drop table employee;
Query OK, 0 rows affected (0.00 sec)
mysql>