How to Change AutoNumber Not Start From 1

I have a table with structure below :
Table_A
{
PGradeID int IDENTITY(1,1),
PName varchar(20)
}

If I delete all records on Table_A, and then fill some records,
PGradeID will no longer start from 1 anymore, everybody knows that. How
to change it so PGradeID will start from 1 after all records was
deleted?

Thanks b4

ResantLookup the DBCC CHECKIDENT command. Also, if you TRUNCATE rather than DELETE
then the IDENTITY will be reset to seed.

Why do you care what the IDENTITY value is? It's usually fatal to attach any
significance to the value assigned by IDENTITY. If you care about the value
then IDENTITY isn't the right solution.

--
David Portas
SQL Server MVP
--|||Reset identity value will not cause problem in my case, but I
appreciate your warning.
Thanks a lot, it's works!