When one such method calls another, we have to add a return type to the one doing the calling, as in this example.

当一个这样的方法调用另外一个时，我们必须给调用者加上返回类型，如下面的例子。

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The static method must have at least one parameter, which is the type you are augmenting.

静态方法必须要有一个参数，这是您将要增加的类型。

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In the previous section you learned about one type of access method, index scan (IXSCAN), and one type of join method, nested loop join (NLJOIN).

在之前的部分您已经了解了一种类型的访问方法，即索引扫描(IXSCAN)，和一种类型的联接方法，即嵌套循环联接(NLJOIN)。

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