We need choice appropriate real-time error control code in order to get low code error ratio in the process of the communication.

在通信过程中，为了要获得比较低的误码率，需要选择合适的实时差错控制方式。

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When the INSERT statement fails with the error code specified in the DECLARE exit handler statement, control passes to the handler, and the procedure is exited.

当insert语句失败并且错误代码在DECLARE EXIT handler语句中指定，那么控制将传递到处理程序，而过程将退出。

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The INSERT error transfers control to the exit handler for that SQLSTATE code.

INSERT 错误将控制转移到 SQLSTATE 代码的退出处理程序。

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