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Allocate at least one auxiliary channel on the auxiliary instance.The principal work of the duplication is performed by the auxiliary channel, which starts a server session on the duplicate host.This might cause a problem if you need all users to be able to see the files in the directory, I suppose.The LOCATE() function returns the position of the first occurrence of a substring in a string.There are several means of specifying locations for duplicate database tempfiles.Listed in order of precedence, they are: It is not always necessary to duplicate all tablespaces of a database.However, the sole prerequisite is to be aware of when any table has been updated. If a user wants to find out when was the last table updated he can query dynamic management view (DMV) – sys.dm_db_index_usage_stats and easily figure out when was the table updated last.

(primary database) while retaining the original target database.

We can use DMV to determine when it was updated last.

Running query provides accurate details of when was the table last updated.

initialization parameter cannot be used to control generation of new names for files at the duplicate instance which are Oracle Managed Files (OMF) at the target instance.

It is subject to the same semantics and limitations as the RMAN re-creates datafiles for temporary tablespaces as part of the process of duplicating a database.