(Day 67) RMAN Duplicate clone PDB

introduce

In the previous NONCDB version, we often used the RMAN Duplicate method to build DataGuard online, which is very convenient and fast. Starting from 12C, after Oracle launched the CDB architecture, it naturally supported the use of Duplicate to copy CDB, but it was not so smart in 12C. It has been upgraded since 18C to support online cloning of pdb to an existing remote CDB using the RMAN Duplicate method.

The syntax is as follows (it is recommended to use OMF):

## 复制后的 PDB 不改名
DUPLICATE PLUGGABLE DATABASE {
   
    
    source-pdb} TO {
   
    
    destination-cdb} 
...
FROM ACTIVE DA