 is similar to <code>fetchAllNotes()</code> but just gets one note
    with the <var>rowId</var> we specify. It uses a slightly different version of the 
    <code><a href="../../reference/android/database/sqlite/SQLiteDatabase.html">SQLiteDatabase</a></code> <code>query()</code> method. 
    The first parameter (set <em>true</em>) indicates that we are interested
    in one distinct result. The <var>selection</var> parameter (the fourth parameter) has been specified to search
    only for the row "where _i