How to restore TABLESPACE not in backup set?

Question

I was playing with RMAN on one of my test databases. Here's what I did.
1) Performed full backup on an ARCHIVELOG enabled database
2) I created a table space named TBLSP
3) shutdown the database
4) Corrupted the only data file in TBLSP
5) startup
As you all guessed database won't open. I was pretty sure that if I restore last full backup and roll archive logs forward, I would be able to recover my corrupted tablespace.
6) rman target /
7) restore datafile 'D:\oracle\oradata\training\tmptbl01.dbf';
8) I get
RMAN-06023: no backup or copy of datafile 14 found to restore
9) Then I tried following and both worked(?) fine.
RMAN> RESTORE DATABASE UNTIL TIME "TO_DATE('09/04/2006 12:20:00','MM/DD/YYYY HH:MI:SS')";
RMAN> RECOVER DATABASE UNTIL TIME "TO_DATE('09/04/2006 12:20:00','MM/DD/YYYY HH:MI:SS')";
10) Now I can do ALTER DATABASE OPEN RESETLOGS;
Database is opened but I lost tblsp tablespace. What should I do to recover corrupted tablespace until its last consistent state.
Thanks...

Answer 1

From the error you received, I would assume you are not on 10g?
If you are on 10g, once you determine the tablespace containing the corrupted datafile, you could rename the datafile on the file system and issue the following in RMAN:
RMAN> startup mount;
RMAN> restore tablespace tblsp;
RMAN> recover tablespace tblsp;
RMAN> alter database open;or
RMAN> startup mount;
RMAN> restore datafile <corrupt_datafile_#>;
RMAN> recover datafile <corrupt_datafile_#>;
RMAN> alter database open;