MySQL でテーブルを正しく切り詰める方法は?

set FOREIGN_KEY_CHECKS = 0;
TRUNCATE TABLE yourTableName1;
TRUNCATE TABLE yourTableName2;
TRUNCATE TABLE yourTableName3;
.
.
.
.
TRUNCATE TABLE yourTableNameN;
set FOREIGN_KEY_CHECKS = 1;

mysql> set FOREIGN_KEY_CHECKS = 0;
Query OK, 0 rows affected (0.00 sec)

mysql> truncate table skiplasttenrecords;
Query OK, 0 rows affected (0.97 sec)

mysql> truncate table searchtextdemo;
Query OK, 0 rows affected (0.89 sec)

mysql> set FOREIGN_KEY_CHECKS = 1;
Query OK, 0 rows affected (0.00 sec)

mysql> select *from searchtextdemo;
Empty set (0.00 sec)

mysql> select *from skiplasttenrecords;
Empty set (0.00 sec)