Recover with RMAN

Question

Hi Experts,
I have a question
i have a backup strategy with rman that create a data file copy and some backupset for other next days
i can restore and recover my database until last exist ARCHIVE LOG without any problem.
now i want to know how can i recover database again until last transaction in redo log if i had db redo log file???
can rman recover from redo log until last transaction register in redolog??
if yes how can i do this?
Thanks
Best Regards

Answer 1

Hi,
1) I think with 3 kind of backup file i have my DB until last transaction that save in online redolog file. is it true?
suppose that we restore database from full backup.
so we have a DB from time full backup time without transactions in archivelogs and redolog file.
now we want recover database until last transaction.we can use two command for this goal:
a. RECOVER DATABASE UNTIL SEQUENCE [last archivelog sequence# + 1];
this command complete successfully and we can open database with resetlogs. but data is until last archive log so u don't have transaction in redolog file.
b. RECOVER DATABASE;
this command always complete with error that says sequence number [last archivelog sequence# + 1 ] not found.
so we found out that this command only see archivelogs, not archivelogs and redolog files.
and i don't know if we can open this database with resetlogs option.
As mentioned by before poster, the redolog files are not backed up and there is needless to take a backup of the redolog and transfer it to the new server. n
2) please tell me how can i introduce redologs to rman?  should i copy them in the same address with their address in control file??
In the RMAN command you must archive the current redolog  file before backing up the archivelogs, which will ensure you will have a upto date  backup. Let me share one of my coding:
RUN
ALLOCATE CHANNEL RMAN_BACK_CH01 TYPE DISK;
ALLOCATE CHANNEL RMAN_BACK_CH02 TYPE DISK;
ALLOCATE CHANNEL RMAN_BACK_CH03 TYPE DISK;
BACKUP
AS BACKUPSET
TAG 'FULL_DATABASE'
FORMAT '/u01/backup/DBFILES_%F’;
DATABASE
SQL 'ALTER SYSTEM SWITCH LOGFILE';
SQL 'ALTER SYSTEM ARCHIVE LOG CURRENT';
RUN
BACKUP
AS BACKUPSET
TAG 'ARCHIVELOGS_ALL'
FORMAT '/u01/backup/ARCHIVELOGS_%F’
DELETE INPUT;
ARCHIVELOG ALL
Hope this helps!
Thanks &
Best Regards,