The fast recovery area cannot be used for log archiving?

I use the version 11.0.2.3 for testing.  I read a line like below from the book of the OCP.

If none of the LOG_ARCHIVE_DEST_n settings have been defined, then the transition

the database in archivelog mode will define LOG_ARCHIVE_DEST_10 internally to the

Flash zone recovery, if it has been configured.

In my database, fast recovery already defined as below.

SQL > show parameter db_recovery

VALUE OF TYPE NAME

------------------------------------ ----------- ------------------------------

db_recovery_file_dest string + FASTRECOVERY

whole large db_recovery_file_dest_size 4248M

So I thought that if I turn the database in log mode archive, the log_archive_dest_10 will be defined as the same value as db_recovery_dest.

SQL > alter archivelog database;

Database altered.

SQL > alter database open;

Database altered.

SQL > show the log_archive_dest parameter

VALUE OF TYPE NAME

------------------------------------ ----------- ------------------------------

Log_archive_dest chain

Log_archive_dest_1 chain

LOG_ARCHIVE_DEST_10 string

See archive of the database becomes, the log_archive_dest_10 always be empty.

So is there something wrong with my understanding?

It is quote an Oracle Press all-in-one exam guide of the I had a part in writing. Your problem is you are using 11.2.x,, but the book was written with 11.1.x. glance the relevant parameters in the docs for both versions, and you will see that the situation has changed.

Uni Oracle validates the examinations against both versions, so avoid any question where the difference would matter, but in any case, with your attention to detail, I'm sure that tat will have no problem with the exams.

--

John Watson

Oracle Certified Master s/n

Tags: Database

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