Other gentleman is correct. The tier list is pretty simple.
MySQL < MSSQL < Oracle < PostgreSQL.
Basically PostgreSQL is king of relational databases right now.
MySQL < MSSQL < Oracle < PostgreSQL.
Basically PostgreSQL is king of relational databases right now.
No way. Maybe Postgre is nicer than MSSQL for you. I don't know. But Oracle? Oracle is worse than MSSQL in just about every way that matters.
So yes, Oracle replication is probably better if you use Golden Gate. But Golden Gate is pretty expensive (17k per CPU?).