Is there anyway to reset the identity of a Table Variable?

Question

Say I have a table variable:

DECLARE @MyTableVar TABLE (ID INT IDENTITY(1,1), SomeData NVARCHAR(300))

After I have inserted 250 rows, I nee

Answer 1

Is it possible to have another int column on your table variable and update that column with modulo after the insert is finished?

declare @Mytablevar table
(
id int identity(1,1)
,id1 int
somedata nvarchar(300)
)

-- insert your data as you would.  After insert is finished, do the following:

update @mytablevar set id1 = case when id > 250 then id % 250 else id end