If the delta is ever negative, consider that an error, as you should never get an item from the queue with an earlier trigger time, when the delay has ended.

如果时间差是负数，可以视为一个错误，因为永远不会在延迟时间结束后，在一个更早的触发时间从队列中取得项。

youdao

You can use a SIGNAL statement to raise an error condition if the business rule defined in your trigger is violated.

如果违反了您在触发器中定义的业务规则，就可以使用signal语句来抛出一个错误条件信号。

youdao

The following system error codes are associated with these sensors and can be used to trigger alerts from the SNMP Trap Event Subscription configuration.

以下的系统错误代码与这些传感器相关，可用来触发SNMP Trap Event Subscription配置中的警报。

youdao

Barring the sort of policy error that would likely also trigger a double-dip recession, that condition should be met as well.

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