SCPT 13: Oracle Redo Buffer Cache

In this video we will learn about Redo Buffer Cache in Oracle RDBMS.
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[@Shivaraj_HR]

Simple way of explaining the things. Thanks a lot for these videos. Kindly come up with performance tuning.

[@ranyshop8439]

hi brother can you create video relate with DATA Segment , Index segment, temporary segment, rollback segment or we call ( Oracle Logical Storage structure )

[@mehmetekici8476]

Can you tell if user roll backs in your sceneria ? specially assuming 1 MB dirty redo buffer and LGWR writes and user rolls back.

[@arqumbeg1]

The 4th condition is to write from Redo cache to redo log file as soon as the cache is filled by one MB, hope this helps :-)

[@TTDBA]

It's when the Redo buffer cache is 1/3 full or 1MB full.

[@johnboyle4549]

not true with 11g and above

[@mouadmuslim]

the 4th condition is not clear on the video :s
thks anyway :)

[@dmitzov]

This is wrong from the very beginning. The first thing to get written by the oracle engine is the redo record in the log buffer. The data block buffer update comes last after the redo and undo updates.