Bug
Field calculation on a layer with join does not work as expected if there is a one-to-many relationship.
| Bug ID Number | BUG-000128479 |
|---|---|
| Submitted | February 7, 2020 |
| Last Modified | March 20, 2025 |
| Applies to | ArcGIS Pro |
| Version found | 2.4.3 |
| Operating System | Windows OS |
| Operating System Version | 10.0 64 Bit |
| Status | Will Not Be Addressed |
Additional Information
There is only one memory location to store the values. The additional records shown in the joined attribute table are mirrored reflections of these locations. Therefore, it is not possible because there is no allocation of anywhere new to put the new values.Workaround
Suggested workflow:
1. Do a one-to-many join.
2. Use Copy Features to persist the data to memory, to make somewhere to put the values).
3. Use Calculate Field against the new table.
Steps to Reproduce
Bug ID: BUG-000128479
Software:
- ArcGIS Pro
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