timestampdiff

Find difference between timestamps in seconds in PostgreSQL using JOOQ

由 心不动则不痛 提交于 2020-01-02 21:02:58
问题 I need to find the difference between two timestamps in seconds using JOOQ . I have taken a look at some answers on StackOverflow using raw SQL, however i didn´t find a way to implement it using JOOQ. Here are some solutions that i found that are using raw SQL: Find difference between timestamps in seconds in PostgreSQL MySQL: how to get the difference between two timestamps in seconds 回答1: Use DSL.timestampDiff(timestamp1, timestamp2). It will return the difference in terms of an INTERVAL

Calculating difference on datetime row betwen rows on the same table

由 ╄→гoц情女王★ 提交于 2019-12-31 07:02:19
问题 I have table that holds records with tasks, status and time when triggered: Table tblwork: +-------------+------------+---------------------+-----+ | task | status | stime | id | +-------------+------------+---------------------+-----+ | A | 1 | 2018-03-07 20:00:00 | 1 | | A | 2 | 2018-03-07 20:30:00 | 2 | | A | 1 | 2018-03-07 21:00:00 | 3 | | A | 3 | 2018-03-07 21:30:00 | 4 | | B | 1 | 2018-03-07 22:30:00 | 5 | | B | 3 | 2018-03-07 23:30:00 | 6 | +-------------+------------+-----------------

转载-查看mysql语句运行时间的2种方法

由 风流意气都作罢 提交于 2019-12-27 19:01:32
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 网站运行很慢的时候，我就特别起知道为什么这么慢，所以我查啊查,数据库绝对是很重要的一部分，里面运行的sql是绝对不能放过的。平时做项目的时候，我也会注意sql语句的书写，写出一些高效的sql来，所以我会经常测试自己写的sql语句。我把我知道的二个方法，总结一下发出来。 一，show profiles 之类的语句来查看 1，查一下profile是不是打开了，默认是不打开的。 mysql> show profiles; Empty set (0.02 sec) mysql> show variables like "%pro%"; +---------------------------+-------+ | Variable_name | Value | +---------------------------+-------+ | profiling | OFF | | profiling_history_size | 15 | | protocol_version | 10 | | slave_compressed_protocol | OFF | +---------------------------+-------+ 4 rows in set (0.00 sec)

PHP/MySQL trying to get TIMESTAMPDIFF to output a result

由 妖精的绣舞 提交于 2019-12-12 03:57:29
问题 My intention with the below code is display the difference between two timestamps in seconds, but nothing is showing at all. I´ve added echo $ts for you to see what $ts contains: $ts = $value['time']; echo $ts; $sql = "SELECT TIMESTAMPDIFF(SECOND,(CURRENT_TIMESTAMP),'$ts')"; $diff = mysql_query($sql); echo $diff; The result is: 2017-01-26 16:30:51 Hence it only shows the content of $ts, not what the time difference is. Help with understanding what I´m doing wrong would be appreciated, thanks!

Calculating difference on datetime row betwen rows on the same table

由 廉价感情. 提交于 2019-12-02 07:31:26
I have table that holds records with tasks, status and time when triggered: Table tblwork: +-------------+------------+---------------------+-----+ | task | status | stime | id | +-------------+------------+---------------------+-----+ | A | 1 | 2018-03-07 20:00:00 | 1 | | A | 2 | 2018-03-07 20:30:00 | 2 | | A | 1 | 2018-03-07 21:00:00 | 3 | | A | 3 | 2018-03-07 21:30:00 | 4 | | B | 1 | 2018-03-07 22:30:00 | 5 | | B | 3 | 2018-03-07 23:30:00 | 6 | +-------------+------------+---------------------+-----+ Status 1 means start, 2 - pause, 3 - end Then I need to calculate how much time is spent
订阅 timestampdiff