数据湖探索 DLI-时间函数:TIMESTAMPDIFF

时间：2024-08-15 10:29:30

数据湖探索 DLI

TIMESTAMPDIFF

功能描述
参考语法说明，本函数功能为返回timepoint1和timepoint2之间的时间间隔，间隔的单位由第一个参数timepointunit指定。

语法说明

INT TIMESTAMPDIFF(timepointunit, timepoint1, timepoint2)

入参说明

参数名	数据类型	参数说明
timepointunit	TIMEUNIT	时间单位。取值范围为： SECOND、MINUTE、HOUR、DAY、MONTH、YEAR。
timepoint1/timepoint2	TIMESTAMP/DATE	时间点。

示例

测试语句

SELECT 
	TIMESTAMPDIFF(DAY, TIMESTAMP '1997-04-25 10:00:00', TIMESTAMP '1997-04-28 10:00:00') AS `result`,
        TIMESTAMPDIFF(DAY, DATE '1997-04-25', DATE '1997-04-28') AS `result2`,
	TIMESTAMPDIFF(DAY, TIMESTAMP '1997-04-27 10:00:20', TIMESTAMP '1997-04-25 10:00:00') AS `result3`
FROM	testtable;