hourOfDay

语法

hourOfDay(X)

参数

X 可以是TIME, MINUTE, SECOND, DATETIME, TIMESTAMP, NANOTIME, NANOTIMESTAMP类型的标量或向量。

详情

返回X中的小时。

例子

$ hourOfDay(00:46:12);
0

$ hourOfDay([2012.06.12T12:30:00,2012.10.28T17:35:00,2013.01.06T02:36:47,2013.04.06T08:02:14]);
[12,17,2,8]

相关函数：dayOfYear, dayOfMonth, quarterOfYear, monthOfYear, weekOfYear, minuteOfHour, secondOfMinute, millisecond, microsecond, nanosecond