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);
# output
0
hourOfDay([2012.06.12T12:30:00,2012.10.28T17:35:00,2013.01.06T02:36:47,2013.04.06T08:02:14]);
# output
[12,17,2,8]相关函数：dayOfYear, dayOfMonth, quarterOfYear, monthOfYear, weekOfYear, minuteOfHour, secondOfMinute, millisecond, microsecond, nanosecond