The key is free, but it's bound to a particular URL, so generating an API key for this article's application requires a bit of foresight.

该键是免费的，但它绑定到一个特定的URL，因此要为本文的应用程序生成一个api键需要提前做一点准备。

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This is the SQL procedure tracing API as used by an application developer.

也就是从应用程序开发人员用来跟踪api的SQL过程开始。

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What many don't realize is that the CPAN module that provides this functionality is actually just a wrapper around an internal application program interface (API).

许多人不知道的是，提供这项功能的 CPAN 模块实际上只是内部应用程序接口（API）的包装器。

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