how to move datafile from one mount point to another
To move or rename a datafile do the following. 1  Shutdown the database. 2  Rename the physical file on the OS. 3  Start the database in mount mode. 4  Issue the ALTER DATABASE RENAME FILE command to rename the file within the Oracle dictionary.5  Open the database.n order to rename or move these files we must alter the value of the control_files instance parameter. To move or rename a controlfile do the following. 1  Alter the control_files parameter using the ALTER SYSTEM comamnd. 2  Shutdown the database. 3  Rename the physical file on the OS. 4  Start the database.