how to convert date 2017-sep-12 To 2017-09-12 in HIVE

问题

I am facing one issue in converting the date in hive. I need to convert 2017-sep-12 To 2017-09-12 . How can i achieve this in HIVE

回答1:

Use unix_timestamp(string date, string pattern) to convert given date format to seconds passed from 1970-01-01. Then use from_unixtime() to convert to given format:

hive> select from_unixtime(unix_timestamp('2017-sep-12' ,'yyyy-MMM-dd'), 'dd-MM-yyyy');
OK
12-09-2017

来源：https://stackoverflow.com/questions/47301455/how-to-convert-date-2017-sep-12-to-2017-09-12-in-hive