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PostgreSQL时间加减

PHPz
Release： 2018-09-30 14:26:06
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连夜声讨PG，竟然时间加减写法有坑

select CURRENT_TIMESTAMP::TIMESTAMP - '5 day'
Copy after login

以上向前减5天，一直报错：[Err] ERROR: invalid input syntax for type timestamp: “5 day”
折腾好久，网上也没有正确的说明。而改为+号就能正常执行

select CURRENT_TIMESTAMP::TIMESTAMP + '5 day'
Copy after login

很是奇葩，不得其姐。
无意间想到了INTERVAL关键字，加上就可以了。

select CURRENT_TIMESTAMP::TIMESTAMP + INTERVAL '5 day'select CURRENT_TIMESTAMP::TIMESTAMP - INTERVAL '5 day'
Copy after login

此处省略无数个问候！

更多相关教程请访问 MySQL视频教程

Related labels：
postgresql timestamp
source：csdn.net
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