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Which is the spatial join tool in ArcToolbox?
The Spatial Join tool is joining records based on a the spatial location (relationship) of the features. The basic Join is joining the records based on matching field values. I do not believe there is a way to produce python via the basic Join drop down, however there are other Join tools in arctoolbox.
What happens when spatial join fails to complete?
There is a documented case where several hundred thousand features are being spatially joined to another dataset that also consists of several hundred thousand features. On older PCs, and some modern PCs, the spatial join does not complete due to memory error, and results in a crash.
Where do I find spatial join in Python?
Second, Analysis toolbox > Overlay toolset > spatial join. This generates Python code but also an “Error 999999: An expected Field was not found or could not be retrieved properly. Failed to execute (SpatialJoin).”
How big of a dataset do you need for spatial join?
The Spatial Join tool from the Join Data dialog box performs best when using datasets that are less than 20,000 features. Under these conditions, it is highly unlikely for a memory error to occur with any modern PC.
What’s the difference between basic join and spatial join?
A join via the drop down (basic Join) in the Table of Contents and the Spatial Join tool are not really the same process. The Spatial Join tool is joining records based on a the spatial location (relationship) of the features. The basic Join is joining the records based on matching field values.
How to join attributes from one table to another?
If you do not want your fields to be prefixed with the table name after a join, open the attribute table, click the Table Options menu, then uncheck Show Field Aliases. Click the What do you want to join to this layer? arrow and click Join attributes from a table . Click the field on which the join will be based.
Why is spatial join not working in Python?
If you need to use the spatial join then I suspect the specific error you are getting has to do with your field mappings. Possibly mismatched or nulled out field, it is hard to say without viewing the data. I would direct you to the tool help which has thorough explanations of how the tool is working and sample code if you are python savvy.