Answer / guest

Redo log buffer is mermory where oracle server store all
the latest transaction which is made by the user.If RLB is
going to fill one third log writer writes the data from
redo log buffer to log file.

Answer / deva

This buffer contains the information about the changes of
datablocks in the database buffer. While the redo log
buffer is filled during data modifications. The log writer
process wirtes information about the nmodifications to the
redo log files. These files are used after eg a system
crash in order to restore the database(database recovery)

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