Partial Reload - Partial Reload is used to Add a new table without reloading existing tables in Qlikview file and also we can replace the existing table in Qlikview file.
Suppose if you tables A and B already loaded into Qlikview file, then we can use Partial Reload to add Table C without reloading Tables A and B again.
Also you can replace existing table with new table. Suppose if you Table A then during reload you can replace the Table A with new data.
Incremental Reload - It is used to reload only the modified/new records between the current and previous reload.
Check Help file for this concepts, it has clear examples.
