如何在Access中使用子查询执行更新查询? [英] How do I perform update query with subquery in Access?

问题描述

我想将此SQL查询(在SQL Server，MySQL和Oracle上运行良好)移植到Access数据库.我怎么做? 现在由于某种原因，它会提示我输入Company_ID.

I want to port this SQL query, which works just fine on SQL Server, MySQL, and Oracle, to an Access database. How do I do that? Right now it prompts me for a Company_ID for some reason.

编辑:我收到提示是因为我忘记首先在VendorRegKeys中创建Company_ID列.现在，我收到错误消息操作必须使用可更新的查询".

Edit: I was getting the prompt because I forgot to first create the Company_ID column in VendorRegKeys. Now I am getting error "Operation must use an updateable query".

UPDATE VendorRegKeys
   SET Company_ID = (SELECT Users.Company_ID
                     FROM Users
                     WHERE Users.User_ID = VendorRegKeys.CreatedBy_ID)

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更新:我发现此方法可以基于 JuniorFlip 的答案进行工作:

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Update: I found this to work based on JuniorFlip's answer:

UPDATE VendorRegKeys, Users
SET VendorRegKeys.Company_ID = Users.Company_ID
WHERE VendorRegKeys.CreatedBy_ID = Users.User_ID

推荐答案

这可能是因为Company_ID 在VendorRegKeys OR Users中不是现有字段.

That could be because Company_ID is not an existing field in VendorRegKeys OR Users.

UPDATE VendorRegKeys
INNER JOIN Users ON Users.User_ID = VendorRegKeys.CreatedBy_ID
SET VendorRegKeys.Company_ID = Users.Company_ID

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