How to calculate Date difference in Hive

Question

I\'m a novice. I have a employee table with a column specifying the joining date and I want to retrieve the list of employees who have joined in the last 3 months. I understand

Answer 1

yes datediff is implemented; see: https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF

By the way I found this by Google-searching "hive datediff", it was the first result ;)