Lookup Maximium Value In Another table for each record

Hi triby25 ,

You may consider using the following steps.

1. Duplicate the DETAILS TABLE.

2. For DETAILS TABLE(2), Group by [IDD].

3. Select HEADER TABLE and Merge Queries.

Select [ID] and [IDD]

4. Expand [MAX_VALUE]

Result.

Best Regards,
Gao
Community Support Team

If there is any post helps, then please consider Accept it as the solution  to help the other members find it more quickly. If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

How to get your questions answered quickly -- How to provide sample data