BigQuery - Calculating Runnig Total

The below bigquery helps user to calculate running total of page visit:

SELECT DATE(a.date_time), a.hour,  a.minute, a.views, SUM(a.views) OVER (ORDER BY  a.hour,  a.minute) AS rt
FROM  [sampledate.clicks] a
JOIN  [sampledate.clicks] b ON  a.date_time = b.date_time
WHERE  b.date_time <= a.date_time 
AND DATE(a.date_time) = DATE(DATE_ADD(CURRENT_DATE(),-1,"DAY"))
ORDER BY  a.HOUR,  a.MINUTE