active sessions
SELECT s.id, c.Cliente, e.date_time login, is_new,
s.date_time last_activity, a.platform, a.browser, a.version
FROM user_session s
JOIN visit_user e ON s.visit_user_id = e.id
JOIN visit_access c ON e.access_id = c.id
JOIN visit_agent a ON c.agent_id = a.id
JOIN visit v ON a.visit_id = v.id
JOIN account.user u ON e.user_id = u.id
JOIN vn2008.Clientes c ON e.user_id = c.Id_cliente
ORDER BY last_activity DESC
SELECT browser
,MIN(CAST(version AS DECIMAL(4,1))) min_version
,MAX(CAST(version AS DECIMAL(4,1))) max_version
,MAX(e.date_time) last_visit
,COUNT(DISTINCT c.id) visits
,SUM(is_new) new_visits
FROM visit_user e
JOIN visit_access c ON e.access_id = c.id
JOIN visit_agent a ON c.agent_id = a.id
JOIN visit v ON a.visit_id = v.id
WHERE e.date_time BETWEEN TIMESTAMP(#from,'00:00:00') AND TIMESTAMP(#to,'23:59:59')
GROUP BY browser ORDER BY visits DESC