Day of week from date

Now suppose I want to print out the date of the last day of the week of the month after the one that is 45 days from Y2K.

现在假设我希望输出这样一个日期：距离y2k 45天之后的某天在下一个月的当前周的最后一天的日期。

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.

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。

Notice: The first day of the semester starts from Monday of the first week, the date to leave the university counts from the date when all the procedure to leave the university is gone through.

注： 学期开始日从校历上每学期第一周的星期一开始算，离校日期以离校手续完成的日期为准。