Having worked on ERP systems, I find the dB often becomes a major bottleneck because of this reason. You end up creating a really beefy single database, with t

Having worked on ERP systems, I find the dB often becomes a major bottleneck because of this reason. You end up creating a really beefy single database, with tons of ram, infinityio etc We have a bunch of different DBs for specific purposes. Some have to be super fast for reading, some just store streams of events, others need to maintain consistency.