mysql中要时间戳的字符串 [英] String to timestamp in mysql

问题描述

有什么方法可以在MySQL中将字符串转换为UNIX时间戳吗?

Is there any way to convert string to UNIX timestamp in MySQL?

例如，我有字符串2011-12-21 02:20pm，该字符串必须为unix时间戳格式.

For example I have string 2011-12-21 02:20pm which needs to be in unix timestamp format.

推荐答案

UNIX_TIMESTAMP()可以解决问题:

SELECT UNIX_TIMESTAMP('2011-12-21 14:20:00');

但是，UNIX_TIMESTAMP()函数仅采用标准的MySQL格式化日期.如果要使用AM/PM表示法，则需要使用

However, the UNIX_TIMESTAMP() function only takes a standard MySQL formatted date. If you want to use the AM/PM notation, you will need to use STR_TO_DATE first like this:

SELECT UNIX_TIMESTAMP(
    STR_TO_DATE('2011-12-21 02:20pm', '%Y-%m-%d %h:%i%p')
);

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