Hive: Get Days in Current Month

In Hive, you can use the date_format function to get the number of days in the current month. The specific steps are as follows:

1. The date of today
2. formatting the date
3. Year month
4. format the date
5. date formatted as yyyy-MM-dd
6. subtract_date
7. format date
8. This date format is “year-month”
9. The format of the date
10. year-month-day
11. difference in dates

Here is an example code:

SELECT datediff(current_date(), date_format(date_sub(date_format(current_date(), 'yyyy-MM-dd'), 1), 'yyyy-MM-dd')) AS month_days;

Running the code above will return the number of days in the current month.