問題文
One pluggable database has to be moved from a container database at an earlier release into a container database at a newer release. Which statement describes the shape of that move?
選択肢
- The pluggable database is copied into the newer container database over the network, and the earlier container database then keeps the original as the way back until the newer release has been accepted.
- The pluggable database is detached from the earlier container database and attached to the newer one, and it is then brought to the newer release by a step that has to be run inside that newer container database.
- The pluggable database is brought to the newer release inside the earlier container database first, and it is then detached and attached to the newer container database without any further work.
- The pluggable database is detached from the earlier container database and attached to the newer one, and the newer container database then brings it to its own release automatically at the next restart of that instance.