禁用在Mysql中重复使用已删除的记录

I have a web application where I interact with a MySql database. When I delete a record, it seems that its slot is reused the next time I create a new record. Since each record has a sequential primary key, the next record will have a new key say 5, but the new record will be placed in the last emptied spot, say where record number 2 used to be. Is there a way to have new records added directly at the bottom of the list? Is there a way to do that with MySQL Query Browser perhaps?I have a web application where I interact with