CLP包括前端进程(表示用户界面)和后端进程，可以用它们来维护数据库连接。

The CLP includes both a front-end process (representing the user interface) and a back-end process to maintain a database connection.

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客户端总是维护与服务器的连接。

The client always maintains a connection with the server.

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此规则的意图是，引导用户采用最佳实践：即尽可能减少所需维护的连接。

The intent behind this rule is to guide users toward the best practice of minimizing connections that need to be maintained.

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