September 2009
Intermediate to advanced
1050 pages
29h 36m
English
Content preview from OCA/OCP Oracle Database 11g All-in-One Exam GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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CHAPTER 19Flashback
Exam Objectives
In this chapter you will learn to
• 053.11.1 Restore Dropped Tables from the Recycle Bin
• 053.11.2 Perform Flashback Query
• 053.11.3 Use Flashback Transaction
• 053.12.1 Perform Flashback Table Operations
• 053.12.2 Configure and Monitor Flashback Database and Perform Flashback Database Operations
• 053.12.3 Set Up and Use a Flashback Data Archive
A long time ago (in a galaxy far away . . . also known as Oracle 5) every version of every data block could be logged to a Before Image file. This provided the rollback function, which was handled at the block level rather than the transaction level. It did provide the capability to “roll back” the entire database but the performance overhead was generally unacceptable, ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.