Is support the only reason people choose Oracle databases over something free like MySQL or Postgres?
MySQL and Postgres have multi-master replication. They do NOT have distributed transactions (with the distributed locking system etc). For some customers it is important. Others have delusions that they need it. Oracle has other products as well. I am generally aware of couple used widely. Their ESB is one of the heavy players, and some sausage stands always need the most advanced ones. The funny thing is that with O…
It does not have multi-master replication natively, though there are companion projects that enable it.