如果FROM子句中指定了表别名,这条select语句中的其他子句都必须使用表别名来代替原始的表名
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A表有3行,B表有2行,A表和B表全连接后得到的新表行数为5行()
A. 对
B. 错
查看bookstore数据库中book表中图书类别为计算机的所有记录
The reports of terror attacks in Paris were__________ across newspapers and websites.
When you visit a new place, try to talk to ________ people and tastelocal food for a better understanding of the culture.