How to refresh the gridview without using ajax timer?

Question

I am using SQLServer 2005. I have one table called Drivers. Every day thousands of records will be added in this table.
I have to show all these records in my GridView with out applying ajax timer beacause we don't know
the time limit when the new record come to the table. Sometimes it will add for 10 seconds some times 20 seconds. There by Please try without using timer or any other soultion apply for the table in sqlserver.
But, i want to see all records immediately when new record comes in table. How?

Thanks in advance...
Ramesh