Convert DB2 "FOR UPDATE" in SQL Server

Hello,
In DB2, we can do FOR UPDATE selection, in order to lock the records until the transaction is completed. e.g.
select field1, field2, field3
from table
FOR UPDATE;
How can I perform the equivalent feature in SQL Server?
Thanks!This is an exceptionally bad way to do things. It allows the "lunchtime lock" where a user has data locked for ages, preventing others from getting any real work done. The best way to simulate this feature in SQL Server is to retrieve the data, then turn off or unplug the network cable from the server.

-PatP|||Pat...Pat...Pat...

You've worked on big iron before....|||You've worked on big iron before....I know, I'll admit it... but I keep trying to prevent those bad habits from spreading!

-PatP|||I sincerely need helps for this question. And I am not fooling around here.