Flash back and addictions journal archive

Hi all

To my knowledge, if I'm not mistaken

* Flashback database lets you take all of the database to a point in time spent (using flashback logs).
* Allows to move flashback that recover you accidentally fallen tables and indexes (using the trash).
* Flashback table allows you to retrieve a table at a time in the past (with the help of undo data).
* Flashback query allows you to query and restore the rows of data to a point in time (using the undo data).
* version flashback query that allows you to retrieve all versions of the data in a table and relies on undo data
* query transaction flashback that allows the DBA to know the flow of transactions on a table and relies on data to cancel it.

I am confused why the database must be in log mode archive when Flashback is not uses files to archive log, if at the moment it uses archive for flashback.

Help, please

Thanks in advance

user7280060 wrote:
Hi all

To my knowledge, if I'm not mistaken

* Flashback database lets you take all of the database to a point in time spent (using flashback logs).
* Allows to move flashback that recover you accidentally fallen tables and indexes (using the trash).
* Flashback table allows you to retrieve a table at a time in the past (with the help of undo data).
* Flashback query allows you to query and restore the rows of data to a point in time (using the undo data).
* version flashback query that allows you to retrieve all versions of the data in a table and relies on undo data
* query transaction flashback that allows the DBA to know the flow of transactions on a table and relies on data to cancel it.

I am confused why the database must be in log mode archive when Flashback is not uses files to archive log, if at the moment it uses archive for flashback.

Help, please

Thanks in advance

Your approach described above is correct. But to allow the flashbacks on the level of data that your database must run in archivelog, due to the DATABASE mode FLSHBACK command/feature uses archivelog files, since sufficient information not in the papers of flashback. So therefore need apply archivelogs also. Finally, your first sentence will be as below

* Flashback database lets you take all of the database to a point in time passed (using flashback logs and archive logs).

Tags: Database

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