SELECT vu.userFk userId, vu.stamp, u.nickname, s.lastUpdate,
a.platform, a.browser, a.version, u.name user
FROM userSession s
JOIN visitUser vu ON vu.id = s.userVisitFk
JOIN visitAccess ac ON ac.id = vu.accessFk
JOIN visitAgent a ON a.id = ac.agentFk
JOIN visit v ON v.id = a.visitFk
JOIN account.user u ON u.id = vu.userFk
ORDER BY lastUpdate DESC