I began with a shapefile of 330,000 features, each having already been geocoded (not that it matters I don't think).
I attempted to join this shapefile to an excel spreadsheet but of course, Arc immediately crashed (this is all being done in ArcMap).
I then broke the shapefile down into around 8 or 9 smaller shapefiles (each with at most 80,000 or so features) and attempted to try the joins again, but that too failed on me.
The field that I am joining on is a concatenation of a 7-10 digit number (found in another field), an underscore, and then a 1 or 2 digit number (also found in another field).
I believe both my shapefiles' attributes tables and the excel spreadsheet are correctly formatting/concatenating the field to be joined on.
I also believe that none of my field names violate the join validation criteria and I have even tried breaking the excel sheet into multiple sheets with fewer records.
The only time a troubleshoot of mine didn't crash Arc was when I joined one single record in the excel sheet to the shapefile I knew contained that record.
In that instance, the tables joined but the information from the single record I had entered into the excel table was not correctly joined to its match in the attribute table. Instead, all of the feature's attribute fields were made null.
Has anyone had an issue similar to this/know what I should do?
I have been troubleshooting for nearly three weeks.