temp tbs, backup or not

[clinton]

1.Is it neccesary to backup the TEMP tablespace in a hot backup or cold backup?

[Shestakov]

Yes, it's better.
All files (include files from TEMP tbs) have timestamps in controlfile.

If no, restore procedure may be more difficult for you.

[gpsingh]

Till 8.0.x , u should, unless u want to drop the tablespace
during recovery and recreate after recovery and open.

From 8.1.x , if the temp tablespace is local managed and not dictionary managed, then u do not need to .

[clinton]

What is the correct syntax to backup the temp tablespace?
I have a locally managed temp tablespace. I tried to do
a hot backup but I receive ORA-03217

alter tablespace TEMP begin backup
*
ERROR at line 1:
ORA-03217: invalid option for alter of TEMPORARY TABLESPACE

[marist89]

You don't need to backup temporary tablespaces in 8i that are created with a tempfile clause. Check dba_temp_files for details.