google-big-queryHow do I use Google Big Query date functions?

Google Big Query date functions allow you to manipulate and analyze date and time values. Here is an example of how to use the DATE_DIFF function to calculate the difference between two dates:

SELECT DATE_DIFF(TIMESTAMP('2020-01-01'), TIMESTAMP('2019-12-31'), DAY) AS days_difference

This would output:

days_difference
1

The code consists of the following parts:

1. SELECT - This keyword is used to indicate that the statement is a query.
2. DATE_DIFF - This is the date function used to calculate the difference between two dates.
3. TIMESTAMP('2020-01-01') - This is the first timestamp argument used to calculate the difference.
4. TIMESTAMP('2019-12-31') - This is the second timestamp argument used to calculate the difference.
5. DAY - This is the unit of time used to calculate the difference.
6. AS days_difference - This is used to assign the result of the calculation to a column named days_difference.

For more information on Big Query date functions, please refer to the Big Query Documentation.

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