2 Shares 1K Share Facebook 1K Share Twitter 1K Share LinkedIn 1K Share Facebook Messenger 2 Share WhatsApp 1K Share Email What is redo? Let’s look briefly at the redo process. When Oracle blocks (the smallest unit of storage in a database) are changed, including UNDO blocks, Oracle records the changes in vector changes, which…
Category: Undo
Differences between UNDO and REDO
0 Shares 1K Share Facebook 1K Share Twitter 1K Share LinkedIn 1K Share Facebook Messenger 1K Share WhatsApp 1K Share Email To clear this question we have this table: UNDO REDO Record of How to undo a change How to reproduce a change Used for Rollback, Read-Consistency Rolling forward DB Changes Stored in Undo segments…
What is the difference between Rollback and Undo Tablespace? OTN Forum By user user503050
0 Shares 1K Share Facebook 1K Share Twitter 1K Share LinkedIn 1K Share Facebook Messenger 1K Share WhatsApp 1K Share Email There might be confusion while undo and rollback segment terms are used interchangeably in db world. It is due to the compatibility issue of oracle. Undo Oracle Database must have a method of maintaining…