Restore datafile from service: A cool #Oracle 12c Feature
You can restore a datafile directly from a physical standby database to the primary. Over the network. With compressed backupsets. How cool is that?Here’s a demo from my present class Oracle Database...
View ArticleNew 12c Default: Controlfile Autobackup On – But only for Multitenant
This a a little discovery from my present Oracle Database 12c New Features course in Copenhagen: The default setting for Controlfile Autobackup has changed to ON – but only for Multitenant,...
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Multisection Backup for Image Copies
A nice Oracle Database 12c New Feature enhances the multisection backup, introduced in 11g: You can use it now for image copies also!Multisection Backup with Image Copyread more
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Table Recovery in #Oracle 12c
You can now restore single tables from backup! It is a simple command although it leads to much effort by RMAN. See it as an enhancement over a ‘normal’ Point In Time Recovery:Point In Time...
View ArticleRMAN old feature: Restore datafile without backup
Say I have created a new tablespace recently and did not yet take a backup of the datafile. Now I lose that datafile. Dilemma? No, because I can do an ALTER DATABASE CREATE DATAFILE. Sounds complex?...
View ArticleHow to resolve media failures with the Recovery Advisor in #Oracle
Error messages are showing up because files have been damaged? Database Recovery Advisor to the rescue!read more
View ArticleHow to use DURATION with RMAN backups in #Oracle
The DURATION clause enables you to reduce the performance impact of RMAN backups respectively it sets a certain time limit for the backup.Let’s suppose your RMAN backup takes one hour now and you take...
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How to do PDB PITR in #Oracle 12c
A logical error happened in one Pluggable Database. A PDB Point-In-Time-Recovery rewinds it while the others remain available and stay as they are.Logical error in PDB2read more
View ArticleHow to speed up Data Pump Import by suppressing redo generation in #Oracle 12c
With your database in archive log mode, a Data Pump Import may be severely slowed down by the writing of much redo into online logs and the the generation of many archive logs. A 12c New Feature...
View ArticleFLASHBACK PLUGGABLE DATABASE now available in #Oracle 12cR2
With the current release 12.2, flashback can be done on the PDB layer. As a prerequisite, the database must be put into local undo mode. That means that each PDB has its own undo tablespace. Some other...
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