本教程还展示如何使用标量函数从date列计算和提取信息，例如星期几和月份。

This tutorial also shows how to use scalar functions to calculate and extract date information, such as day of week and month name, from date columns.

youdao

本教程还展示如何使用标量函数从date列计算和提取信息，例如星期几和月份。

This tutorial also shows how to use scalar functions to calculate and extract date information, such as day of week and month name, from date columns.

youdao