The only other noticeable difference is that an additional clause can and should be appended to the CREATE TABLE statement to specify in which database the table shall be placed.

惟一需要注意的其他事项是，可以、也应该在 CREATE TABLE 语句后面添加一个子句，以指定将表放在哪个数据库中。

youdao

It USES an additional source column on the SELECT clause in each UNION ALL view to indicate the source of the data.

它在每个NION ALL视图中的select子句上使用一个附加的源列表明数据的来源。

youdao

For example, Listing 7 contains three comment lines with an additional WHERE clause.

比如，清单7包含了带有一个额外的where子句的三个注释行。

youdao