I need to be able to take an attribute table of about 150K records and modify certain fields in it. I've exported portions of it and done my modifications in excel and am attempting to import as a csv; however, when I run the field calculator all I get is a long process that eventually times out. I can't just export the table and then import it, replacing the previous, as live edits are being made to this table. I am using versioned workflows, if that makes any differences. Does anyone have any ideas or pointers?
