I have a table in BigQuery where I save a DATESTAMP and temperature sensor value. I usually filter the query by dates. My goal is to add a column in this query where it puts the total number of rows.
For example, if I run this query I have this result:
SELECT DATESTAMP, Temperature FROM `my_project.my_folder.my_table` WHERE DATESTAMP BETWEEN TIMESTAMP("2020-02-05 00:00:00.000") AND TIMESTAMP("2020-02-06 00:00:00.00")
ROW DATESTAMP Temperature 1 2020-02-05 06:44:37 UTC 15.14 2 2020-02-05 09:41:11 UTC 18.25 3 2020-02-05 12:11:25 UTC 21.21 4 2020-02-05 22:15:37 UTC 14.65
And when I run this query I have this result:
SELECT count(*) AS num_total FROM `my_project.my_folder.my_table` WHERE DATESTAMP BETWEEN TIMESTAMP("2020-02-05 00:00:00.000") AND TIMESTAMP("2020-02-06 00:00:00.00")
ROW num_total 1 4
My goal is to program a query and receive this result
ROW DATESTAMP Temperature num_total 1 2020-02-05 06:44:37 UTC 15.14 4 2 2020-02-05 09:41:11 UTC 18.25 4 3 2020-02-05 12:11:25 UTC 21.21 4 4 2020-02-05 22:15:37 UTC 14.65 4
How can I do?
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Answer
This is one option.
SELECT DATESTAMP , Temperature , (select count(*) from `my_project.my_folder.my_table`) as num_total FROM `my_project.my_folder.my_table` WHERE DATESTAMP BETWEEN TIMESTAMP("2020-02-05 00:00:00.000") AND TIMESTAMP("2020-02-06 00:00:00.00")