使用EXIST函数可以检测某个字段的唯一性，如果某表单有姓名、检查项目、所属月份等控件，而判断数据提交不重复的依据是以上三个字段联合不重复，这个表单检验公式又怎么写呢？曾试过加一个校验字段，其内容内是用公式把上面三个控件合并而成，这样写入后，根据这个校验字段是可以实现数据的唯一性检验了，但是凡是这个校验字段产生内容的公式中所涉及到的字段均无法再更改内容。请教各位。

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更新时间 2024-09-03 09:18:08

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