in this article, we will discuss about: minute(), microsecond(), and hour() mysql functions. we will do these with the help of their syntax, usage and use cases.
mysql是一个开源的关系型数据库管理系统。它允许用户存储和操作数据。在mysql中,我们可以使用函数执行特定的任务。
minute()函数the minute() function returns the minute portion of a given time or datetime value. it takes one argument, which is the time or datetime value to extract the minutes.
输出格式output range is 0 to 59 as integer value.
syntaxthe syntax of the minute() function is as follows
minute(datetime)
example-1的翻译为:示例-1select minute(now());
the output will be a single number. it represents the current minute value.
example-2select minute(2023-04-02 13:06:07);
输出将是分钟值,这里是06。
example-3的中文翻译为:示例-3select minute(13:06:07);
输出将是分钟值,这里是06。
使用minute()函数可用于计算两个事件之间的时间长度。它可以设置特定时间戳的分钟值。
microsecond()函数the microsecond() function returns the microsecond portion of a given time or datetime value. it takes one argument, which is the time or datetime value to extract the microsecond.
输出格式output range is 0 to 999999 as integer value.
syntaxthe syntax of the microsecond() function is as follows
microsecond(datetime)
example-1的翻译为:示例-1select microsecond(now());
输出将是一个单独的数字。它代表当前微秒值。
example-2select microsecond(2023-04-02 13:06:07.000005);
the output will be microsecond value which is 05 here.
example-3的中文翻译为:示例-3select microsecond(13:06:07.568549);
输出将是微秒值,这里是568549。
使用the microsecond() function can be useful in scenarios where high precision is required.
hour() functionhour()函数返回给定时间或日期时间值的小时部分。它接受一个参数,该参数是要提取小时的时间或日期时间值。
输出格式输出范围为0到23的整数值。
syntaxthe syntax of the hour() function is as follows
hour(datetime)
example-1的翻译为:示例-1select hour(now());
输出将是一个单一的数字。它代表当前的小时值。
example-2select hour(2023-04-02 13:06:07.000005);
the output will be minute value which is 13 here.
example-3的中文翻译为:示例-3select microsecond(13:06:07.568549);
the output will be minute value which is 13 here.
使用hour()函数在需要从时间戳中提取小时值的场景中非常有用。
我们已经讨论了这三个mysql函数。这些函数用于处理时间或日期时间值。它们都只接受一个参数,即时间或日期时间。它们都返回一个整数值。
以上就是mysql 中的 minute()、microsecond() 和 hour() 函数的详细内容。
