riend count into the variable <tt>count</tt>. <br />
<br />
If this retrieval is successful, we use the SQL <tt>UPDATE</tt> statement with a 
<tt>WHERE</tt> clause to add one to the <tt>friends</tt> column for the row that 
matches the friend's account. Notice that there are two placeholders (i.e.
question marks) in the SQL, and the second parameter to the <tt>execute()</tt> is
a two-element tuple which holds the values to be substituted into the SQL
in place of the question marks.<br />
<br />
If the code 