May 2010
Intermediate to advanced
688 pages
19h 35m
English
Content preview from Oracle RMAN 11g Backup and Recovery
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CHAPTER 15Surviving User Errors: Flashback Technologies
Media recovery with RMAN provides critical safeguards against all kinds of unforeseeable problems—block corruption, hardware failure, even complete database loss. But so far, this book has ignored the largest cause of media recovery operations: user error.
User errors can be roughly defined as errors caused by a human mistake (rather than a software or hardware malfunction), such as a table updated with wrong values, a table dropped, or a table truncated. Such errors are far more common than hardware failures (although, let’s face it, human errors get called hardware errors all the time). In general, user errors are classified as logical errors—the error is logical, within the data itself, ...
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