By searching through above link, i found this question and answer :
I need to put a database on two servers, and I want them to be the same: If I change one of them, the second one should take this change, for example, adding columns, removing and whatever else....
Brian Peasland: What you are asking to do is to replicate your database between two different servers. Oracle sells an additional product called Advanced Replication. With replication, you can set up one database to be the MASTER with all changes propagated to the other. You can even have two-way replication if you desire. But keep in mind that you will have to license the database and replication on both servers. This cost can add up quickly!
My questions are?
The above solution seems to be same as "STANDBY database".
Can anyone please clarify me the difference between standby and replication..?
Are DB replication and DB cloning concepts are same?
and as well as any difference between DB migration and DB moving, or both are same.?