当执行由UPDATE语句引发的触发器时，下列关于该触发器临时工作表的说法，正确的是（）。 -题库考试答案搜索网

当执行由UPDATE语句引发的触发器时，下列关于该触发器临时工作表的说法，正确的是（）。

单选题

2022-05-07 18:06

A、系统会自动产生UPDATED表来存放更改前的数据
B、系统会自动产生UPDATED表来存放更改后的数据
C、系统会自动产生INSERTED表和DELETED表，用INSERTED表存放更改后的数据，用DELETED表存放更改前的数据
D、系统会自动产生INSERTED表和DELETED表，用INSERTED表存放更改前的数据，用DELETED表存放更改后的数据

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正确答案

C

试题解析

标签：大学试题工学 CMS专题本科计算机科学与技术

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