ery (in this case <code>DATABASE_TABLE</code> is "notes").
    The next is the list of columns we want returned, in this case we want the <code>_id</code>, 
    <code>title</code> and <code>body</code> columns so these are specified in the String array.
    The remaining fields are, in order: <code>selection</code>, 
    <code>selectionArgs</code>, <code>groupBy</code>, <code>having</code> and <code>orderBy</code>.
    Having these all <code>null</code> means we want all data, need no grouping, and will tak