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ModelBuilder how to compare several fields between 2 FCs

JoseSanchez

Hello everyone,

I need to check if features from one FC match features from another feature class. For this purpose I need to compare 3 fields from the first FC to 3 fields from the second FC.

How can I compare 2 feature classes using more than one field? With one field I can use join a join. Is is possible to join several fields between 2 FCS?

Do I need to do this compare in python or vb.net?

Thanks

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Accepted answers

XanderBakker

Probably the easiest way to do this is using Python. You mention ModelBuilder. You can create a tool with Python and add it to ModelBuilder. What do you want to do with the matching features?

All comments

XanderBakker

Very true, with the advantage that it will compare all the fields, BUT if the order of the featureclass is changed, it will not be able to detect the changes correctly.

ChrisDonohue__GISP

If Python is not your thing, another possible approach would be to use the Feature Compare tool

Feature Compare—Help | ArcGIS for Desktop

Chris Donohue, GISP

JoseSanchez

Good questions!

Can you help me with an answer?

XanderBakker

And what should be the output of the tool? A list of differences of a selecting of features?

What if a feature geometry or an attribute that is not being considered in the validation, has been changed?

JoseSanchez

Hi,

I am comparing two different days of the same feature class and I am looking for unmatched features to find records inserted and deleted.

Thanks

XanderBakker

Probably the easiest way to do this is using Python. You mention ModelBuilder. You can create a tool with Python and add it to ModelBuilder. What do you want to do with the matching features?

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