hive datediff函数

hive的datediff函数用于计算两个日期之间的天数差异。具体而言，该函数返回开始日期减去结束日期的天数。如果开始日期晚于结束日期，则返回正值；如果开始日期早于结束日期，则返回负值。使用示例如下：datediff('开始日期','结束日期')。

示例代码：

SELECT datediff('2022-08-14', '2022-08-04');

该代码将返回开始日期和结束日期之间的天数差异。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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