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Editor to share with you how to use the set command in RMAN, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

1. Set newname command:

If you are restoring some data files to new locations, then execute RESTORE DATABASE and RECOVER DATABASE sequentially in a RUN command. Use the SET NEWNAME to rename data files, as described in "Restoring Datafiles to a Nondefault Location".

If you want to restore some data files to a new location, execute RESTORE DATABASE and RECOVER DATABASE sequentially in the RUN command. Rename the data file using SET NEWNAME, as described in "restoring a data file to a non-default location."

The following example restores the database, specifying new names for three of the data files, and then recovers the database:

RUN

{

SET NEWNAME FOR DATAFILE 2 TO'/ disk2/df2.dbf'

SET NEWNAME FOR DATAFILE 3 TO'/ disk2/df3.dbf'

SET NEWNAME FOR DATAFILE 4 TO'/ disk2/df4.dbf'

RESTORE DATABASE

SWITCH DATAFILE ALL

RECOVER DATABASE

}

2. Restoring Datafiles to a Nondefault Location (restore the data file to a non-default location)

If you cannot restore data files to their default locations, then you must update the control file to reflect the new locations of the data files. Use the RMAN SET NEWNAME command within a RUN command to specify the new file name. Afterward, use a SWITCH command, which is equivalent to using the SQL statement ALTER DATABASE RENAME FILE, to update the names of the data files in the control file. SWITCH DATAFILE ALL updates the control file to reflect the new names for all data files for which a SET NEWNAME has been issued in a RUN command.

If you cannot restore the data file to its default location, you must update the control file to reflect the new location of the data file. Use the RMAN SET NEWNAME command in the RUN command to specify the new file name. After that, use a SWITCH command (equivalent to using the SQL statement ALTER DATABASE RENAME FILE) to update the name of the data file in the control file. SWITCH DATAFILE ALL updates the control file to reflect the new names of all data files issued for SET NEWNAME in the RUN command.

The above is all the contents of the article "how to use set commands in RMAN". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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