Deleting a large amount of fields from a Feature Class using the Delete Fields tool takes an excessively long time.
One of the tricks I use to speed this up is to simply turn the field visibility off in the Layer properties and then export the Feature Layer to a new feature class retaining only the visible fields. It's a lot faster (perhaps you guys should alter the Delete Fields tool to just make a feature layer and then export to a new Feature Class?).
In any case, in the Feature Layer properties, you can also reorder fields. However, because Feature Layer's are in-memory, those changes aren't committed to the source dataset. Cool, I get that.
- BUT -
It would be fantastic if the Feature Layer's field order was honored on export, essentially creating a way to reorder fields in ArcMap by reordering the fields in the Feature Layer properties, then exporting the Feature Layer to a new FC or Shapefile.
The enhancements described are being incorporated in a redesign of export tool/dialogs in ArcGIS Pro 3.0.
This functionality has been added in ArcGIS Pro 3.0. When you have re-ordered fields in a table view, the Export Features or Export Table tools preserve that order in the field map.
https://pro.arcgis.com/en/pro-app/latest/tool-reference/conversion/export-features.htm
https://pro.arcgis.com/en/pro-app/latest/tool-reference/conversion/export-table.htm
See Ideas in ArcGIS Pro 3.0 to see this and all of the other ideas you can look forward to when you upgrade.
Also be sure to check out the What's New documentation: https://pro.arcgis.com/en/pro-app/latest/get-started/whats-new-in-arcgis-pro.htm
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