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无法执行级联操作。它将导致表中的空键。(错误 3398)Cannot perform cascading operation. It would result in a null key in table . (Error 3398)

office 365 dev account|上次更新日期: 2018/3/13
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适用于:访问 2013年 |访问 2016 年Applies to: Access 2013 | Access 2016

您尝试执行的级联操作将导致所示表,设置了一个主键字段中的值不为允许值。请检查您尝试更新并将其修正为不会导致值的值。The cascade operation you are attempting would result in a Null value in a primary key field in the indicated table, which has been set up not to allow Null values. Check the values you are attempting to update and fix them so they do not result in Null values.

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