rson who <tt>drchuck</tt> is following, we
would insert a row of the form:
</font><pre><font size="4" color="blue">
INSERT INTO Pals (from_friend,to_friend) VALUES ('drchuck', 'lhawthorn')
</font></pre><font color="black">As we are processing the 20 friends from the <tt>drchuck</tt>
Twitter feed, we will insert 20 records with "drchuck"
as the first parameter so we will end up duplicating the 
string many times in the database.<br />
<br />
This duplication of string data violates the best practices 
for <b