mysql> insert into customer_tbl values(715,'bob diggler','1102 huntingtonst','shelby','in',41234,'3172222222',null);<br>
Query OK, 1 row affected (0.09 sec)
mysql> savepoint sp1;<br>
Query OK, 0 rows affected (0.00 sec)<br>
mysql> update customer_tbl set cust_city='chicago' where cust_id='715';<br>
Query OK, 1 row affected (0.04 sec)<br>
mysql> rollback to sp1;<br>
ERROR 1305 (42000): SAVEPOINT sp1 does not exist回退到保存点1无法执行？