hql months_between

HQL (Hive Query Language) does not have a built-in function for calculating the number of months between two dates. However, you can use the `datediff` function to calculate the number of days between two dates and then divide it by 30 to get an approximate number of months.

Here's an example of how you can calculate the approximate number of months between two dates in HQL:

SELECT DATEDIFF(date2, date1) / 30 AS months_between
FROM your_table;

Please note that this method provides an approximate number of months and may not give you an exact result due to the varying number of days in each month.

相关问题

Hql date_sub

Hql中的date_sub函数用于对日期进行减法操作，返回一个新的日期。它的语法如下：date_sub(date, int)，其中date是要进行减法操作的日期，int是要减去的天数。如果int为正数，则表示正向减，即减去int天；如果int为负数，则表示负向减，即加上int天。与此类似的函数还有date_add，用于对日期进行加法操作。需要注意的是，Hql中的日期函数与MySQL中的日期函数略有不同，具体使用时需要参考Hql的文档。