about Transaction's problem

There is a table named users in my database.
It has two colume:
userName varchar(20)
age int
now I execute the follow transaction:
begin tran
insert users (userName,age) values ('mark',25)
insert users (userName,age) values ('jack',2577777777777767777)
commit tran
obviously,the second setence has an overflow error,
the question is:has the first record been inserted into the users table?
why?"κ" <weisl@.netstars.com.cn> wrote in message
news:%23T$6pCrPGHA.140@.TK2MSFTNGP12.phx.gbl...
> There is a table named users in my database.
> It has two colume:
> userName varchar(20)
> age int
> now I execute the follow transaction:
> begin tran
> insert users (userName,age) values ('mark',25)
> insert users (userName,age) values ('jack',2577777777777767777)
> commit tran
> obviously,the second setence has an overflow error,
> the question is:has the first record been inserted into the users table?
> why?
>
Because you told it to. You need error checking (or try/catch in SQL 2005)
to prevent execution from moving from the line that generates the error to
the line that commits the transaction.
David