Bulk Insert...Introduction...When you want to insert hundreds, thousands, or millions of entities using ...SaveChanges()... method, you will notice that your application performance is ...INSANELY... slow. Because ...SaveChanges()... requires one database round-trip for every entity to insert. So if you need to insert 10000 entities, then 10000 database round-trips will be performed and your application suffers from performances issues....Entity Framework Core has made great improvement and is w...