SELECT LAST_INSERT_ID()

Question

Can somebody explain how works MySQL function LAST_INSERT_ID(). I\'m trying to get id of last inserted row in database, but every time get 1.

I use mybatis.

Answer 1

Example 1:

mysql> CREATE TABLE prime2 LIKE prime;
Query OK, 0 rows affected (0.08 sec)

mysql> SELECT LAST_INSERT_ID(); //From table prime!!!
+------------------+
| LAST_INSERT_ID() |
+------------------+
|                3 |
+------------------+
1 row in set (0.00 sec)


mysql> INSERT INTO prime2 VALUES(1,1);
Query OK, 1 row affected (0.01 sec)

mysql> SELECT LAST_INSERT_ID(); 
+------------------+
| LAST_INSERT_ID() |
+------------------+
|                3 |
+------------------+
1 row in set (0.00 sec) //From table prime!!!