Listing 14 shows an example of the SIGNAL statement.
清单14展示了一个示例signal语句。
It is important to realize the impact of the inclusion of our SIGNAL statement.
认识到包含signal语句的效果是很重要的。
The SIGNAL statement is used to explicitly raise an error and force the invocation of a handler.
signal语句用于显式地发出一个错误并强制调用处理程序。
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