After the execution of the UPDATE, INSERT, and DELETE statements, an additional variable is available to check the result of the statement.

执行完update、INSERT和delete语句后，将使用额外的一个变量来检查语句的结果。

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If one or more insert triggers are defined on a table, each insert will result in the execution of the actions prescribed in the trigger definition.

如果在一个表上定义了一个或多个进行insert操作的触发器，那么每次的insert都将引起触发器定义中的动作的执行。

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However, REFRESH IMMEDIATE system-maintained MQTs are updated with changes made to the underlying tables as a result of insert, update, or delete operations.

但是，对于 REFRESH IMMEDIATE 类型的系统维护的 MQT，可以通过 对底层表的更改（即 insert、update 或 delete 操作）来更新。

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