Forum Discussion
Value Associated With Max Value From Another Column
I have two tables, a table of orders and a table of parts associated with those orders, with a many-to-one relationship; there can be many parts associated with a single order. Here is a sample set of data:
Orders
| OrderNum |
| 1 |
| 2 |
| 3 |
Parts
| OrderNum | PartNum | Seq | ExpectedDate |
| 1 | ABC | 1 | 10/10/2021 |
| 1 | DEF | 2 | 10/16/2021 |
| 1 | GHI | 3 | 10/13/2021 |
| 2 | XYZ | 1 | 10/17/2021 |
| 2 | AAA | 2 | 10/11/2021 |
| 3 | BBB | 1 | 10/10/2021 |
| 3 | JKL | 2 | 10/12/2021 |
| 3 | ZZZ | 3 | 10/12/2021 |
I have an measure like Max Expected Date = MAX('Parts'[ExpectedDate]) to determine the latest expected date for each order, which returns a table like:
| OrderNum | Max Expected Date |
| 1 | 10/16/2021 |
| 2 | 10/17/2021 |
| 3 | 10/12/2021 |
Now I would like to return the part number associated with that max expected date. If there are multiple parts with the same max expected date for a single order, then I want to return the part number with the lowest Seq value. For example, for order 3 there are 2 parts with an expected date equal to the max expected date, so I would need to return part JKL because of those two parts it has the lowest Seq value.
The desired output would be:
| OrderNum | Max Expected Date | Max Expected Date Part Number |
| 1 | 10/16/2021 | DEF |
| 2 | 10/17/2021 | XYZ |
| 3 | 10/12/2021 | JKL |
Thank you in advance.
Anonymous here is the measure:
Latest Part = VAR __LatestExpectedDate = MAX ( Parts[ExpectedDate] ) VAR __EarliestSequence = CALCULATE ( MIN ( Parts[Seq] ), Parts[ExpectedDate] = __LatestExpectedDate ) RETURN CALCULATE ( MAX ( Parts[PartNum] ), Parts[ExpectedDate] = __LatestExpectedDate, Parts[Seq] = __EarliestSequence )output
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4 Replies
There are quite a number of ways to do this.
https://stackoverflow.com/questions/52525377/return-top-value-ordered-by-another-column
I'm not sure what version is considered "best practice".
Anonymous for order #3, why you will have JLK, not ZZZ, both orders have the latest date? What is the logic to pick one over another?
parry2k I only want to return a single part. Logic in this case would be to select the part with the lowest Seq value. Part JKL and ZZZ both have a max expected date of 10/12/2021, so I would return JKL because it has the lower Seq value (2) compared to the Seq value for ZZZ (3).
Anonymous here is the measure:
Latest Part = VAR __LatestExpectedDate = MAX ( Parts[ExpectedDate] ) VAR __EarliestSequence = CALCULATE ( MIN ( Parts[Seq] ), Parts[ExpectedDate] = __LatestExpectedDate ) RETURN CALCULATE ( MAX ( Parts[PartNum] ), Parts[ExpectedDate] = __LatestExpectedDate, Parts[Seq] = __EarliestSequence )output
✨ Follow us on LinkedIn
Check my latest blog post The Power of Using Calculation Groups with Inactive Relationships (Part 1) (perytus.com) I would ❤ Kudos if my solution helped. 👉 If you can spend time posting the question, you can also make efforts to give Kudos to whoever helped to solve your problem. It is a token of appreciation!
⚡ Visit us at https://perytus.com, your one-stop-shop for Power BI-related projects/training/consultancy.⚡
