yes, we can change the datatables with stored procedures.
if we want to cahnge the password in any website login page we can write stored procedure for that
ex:
create procedure changepassword(@ userid 1varchar(20),@pwd 1varchar(20))
as
begin
update table
set pwd=@ pwd1 where userid=@ userid1
end
we can write the procedure name in command object of ado.net using parameters. we can cahnge pwd.