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Rollback Segments [message #291721] Sun, 06 January 2008 04:21 Go to next message
rsreddy28
Messages: 295
Registered: May 2007
Senior Member
Hello All,

I'm quiet perplexed with the Rollback segments . Can you help me out in dealing with Rollback segments, the modes of RBS and the optimal usage of RBS . Please let me know if there is any article on RBS .

Regards,
Raj

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Re: Rollback Segments [message #291722 is a reply to message #291721] Sun, 06 January 2008 04:25 Go to previous messageGo to next message
varu123
Messages: 754
Registered: October 2007
Senior Member
Whats your oracle version?
WHy worry about rollback segments when we have oracle managed undo tablespaces.

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Re: Rollback Segments [message #291724 is a reply to message #291722] Sun, 06 January 2008 04:40 Go to previous messageGo to next message
rsreddy28
Messages: 295
Registered: May 2007
Senior Member
Hello,

My Oracle version is Oracle 10g release 2. I know that In 10g we have the UNDO Tablespace. But I want to have what are those RBS and all the different modes of RBS .
And also difference between RBS/UNDO .

Regards,
Raj

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Re: Rollback Segments [message #291726 is a reply to message #291724] Sun, 06 January 2008 05:16 Go to previous messageGo to next message
Michel Cadot
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Registered: March 2007
Location: Saint-Maur, France, https...
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The main difference is that you don't to care how to size or handle them all is done by Oracle.
You just have to size your undo tablespace and undo_retention parameter.

Regards
Michel

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Re: Rollback Segments [message #291730 is a reply to message #291721] Sun, 06 January 2008 05:28 Go to previous message
Michel Cadot
Messages: 68718
Registered: March 2007
Location: Saint-Maur, France, https...
Senior Member
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Database Concepts
Part II Oracle Database Architecture
Chapter 2 Data Blocks, Extents, and Segments
Section Overview of Segments
Subsection Introduction to Automatic Undo Management

This kind of questions are all answered in "Database Concepts"

Regards
Michel

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