BigQuery select data within a time interval

Question

my data looks like

name| From | To_City | Date of request

Andy| Paris | London| 08/21/2014 12:00

Lena | Koln | Berlin | 08/22/2014 18:00

<

Answer 1

You could truncate the date to exclude the hours, minutes and seconds. Then group by that column

SELECT SUBSTR(STRING(date-of-request), 0, 9) AS day
FROM t1
GROUP BY day