hive里面怎么把两个时间点相减 然后求出相隔多少秒？比如2015-05-01 12:02:03和

Posted 2023-03-19

hive里面怎么把两个时间点相减 然后求出相隔多少秒？比如2015-05-01 12:02:03和2015-05-01 11:06:06两个时间怎么相减 我试了datediff 貌似不可以 求大神

参考技术A unix_timestamp(end_time) - unix_timestamp(start_time)
datediff 只能精确到天 参考技术B cast(updated_time as timestamp)-cast(switch_time as timestamp) 参考技术C select unix_timestamp('2015-05-01 12:02:03')-unix_timestamp('2015-05-01 11:06:06') 参考技术D 先查询，后相减 第5个回答  2017-10-26 SELECT t1.id,(t1.end_time-t2.start_time) as difference_time from
(SELECT u1.id as id,u1.page as page,unix_timestamp(u1.event_time) as end_time
FROM user_behavior_sor_clear u1 WHERE u1.event='end') t1
LEFT JOIN
(SELECT u2.id as id,u2.page as page,unix_timestamp(u2.event_time) as start_time
FROM user_behavior_sor_clear u2 WHERE u2.event='start') t2
ON t1.id=t2.id and t1.page=t2.page
WHERE t1.page='register';