Hi,

Could you please tell me how you understand the last sentence of the following paragraph. Please read it more than once and analyze the exacte meaning of each word:
You can skip all tablespaces in the target database except the SYSTEM tablespace, undo tablespaces, and tablespaces containing rollback segments. RMAN does not check for completeness. For example, you can duplicate a data tablespace but not the tablespace containing the index for the data, or duplicate a tablespace that contains only one partition of a partitioned table.
The entire document can be found under:
http://download-west.oracle.com/docs...ta27.htm#81553