First of all, you can write the code easier:
update newTable set readKey='1' where id in ('1111')
In SQL Server, this will only return the number of rows updated, but only when SET NOCOUNTnot installed.
Basically, you can make a second query to display the results immediately after the first:
update newTable set readKey='1' where id in ('1111');
select * from newTable where id in ('1111');
, SQL Server 2005/2008, OUTPUT:
update newTable
set readKey='1'
output inserted.id,
inserted.readKey as readKey,
deleted.readKey as prevReadKey
where id in ('1111');