Selecting from an external table reads the data from the data file(s) and provides it in the form of rows and columns as if it was read from the normal base table.

从外部表选择可从一个或多个数据文件读取数据，并以行和列的形式提供该数据，就好像从常规基表读取数据一样。

youdao

Even after normal births the mother \ \ \ 's milk continued to change in protein content etc. to suit the needs of the baby as it grew.

为了更好地满足婴儿成长的需要，甚至在生产之后母乳也会继续改变其蛋白质含量等其他方面。

youdao

"It`s better we get back to a normal routine before the holiday ends, sleeping earlier and eating less," Shi said.

史宇说：“我们最好是在假期结束前就回到日常正轨中去，早点就寝，合理饮食。”

youdao

It wasn't a normal question time, it was let's have a go at Nick Griffin time,".

VOA: standard.2009.10.23

It's not in my current folder but because I installed it with like a normal installer, double click and all of that.

它并不在我当前文件夹，但是由于我安装了,某个程序，双击的那种，然后一切都搞定。

哈佛公开课 - 计算机科学课程节选

So mostly it's just work and practice and a lot of fun with my friends, but it's pretty normal.

所以，我的本科生活就是学习，训练，和朋友们一块放松，很普通的学生生活。

MIT的时尚品味 - SpeakingMax英语口语达人

And people are trying to keep a normal way of life here but it's not normal, it's not business as usual here.

NPR: Detroit Feels Pain Of Big Three's Troubles

"This time around, there are many different candidates, so it's normal that it's going to take longer than the last time, " Cardinal Francisco Javier Errazuriz of Chile told The Associated Press.

NPR: Conclave To Elect Next Pope Opens Amid Uncertainty

In this column, we'll discuss many aspects of healthy living and answer a wide variety of questions -- ranging from when it's safe to fly with an infant to whether it's normal for adults to get ear infections and how to make the most of your medical visits.

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