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How to disable flashback query logging for a specific table (Oracle)?

We have a specific table that has a lot of activity and it creates a lot of change records. The consequence is that the flashback data only goes back a couple of days. That is OK for many cases but it ...
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How to backup the database before partitioning (RANGE) 100 GB database?

I want to carry out the partitioning activity. I am using oracle 11g R2. In case of error occurs while partitioning I might loose the data. On safer side I want to take backup of the database and if ...