I am working with ArcGIS 10.3.1.4959 (
License type: Advanced), and am trying to merge 3 point shapefiles together using the
Data Management Tools -> General -> Merge functionality from ArcToolbox.
Between the shapefiles the fields do not match. But what's important is that they share the same coordinate system and geometry, being all points.
When I apply the
Merge tool, the final result is never consistent: sometimes it includes the last element of the 1st shapefile, and sometimes the 1st shapefile is not at all present. I always get all the elements in the last two shapefiles, however. All three shapefiles are within the same Geodatabase.
I have tried to use
Data Management Tools -> General -> Append but I am forced to use the
NO_TEST schema type, losing useful information.
Why does this happen, and what can I do to walk around this obstacle?