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Database Administration (MOSC)

Undo and transaction

Jun 28, 2012 11:08PM edited Jul 2, 2012 2:54AM in Database Administration (MOSC) 5 commentsAnswered

Hi,

Can anyone explain how transaction is allocated undo segments, slots, extents and blocks.

Does all the undo blocks in an undo extent belong to same transaction?

What 'uel' column represent in transaction table in undo segment header?

Thanks,

Soumik

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