[web2py] How do I get last n rows from table?

[Hans Cr]

I want my controller to return the last ('updated') n rows given de 
definition below given a certain 'gid' and 'sid'. Can anyone help me?

Thanks a lot in advance!

Hans


db.define_table('value',
    Field('gid', 'string'),
    Field('sid', 'string'),
    Field('value', 'integer', required=True),
    Field('updated', 'datetime', default=request.now, writable=False, 
readable=False),
    format = '%(value)s')

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