Before COMMIT
generated rollback
segment records in
buffers in the SGA
generated redo log
entries in the redo log
buffer of the SGA.
The changes have been
made to the database
buffers of the SGA.
After COMMIT
The internal transaction
table for the associated
rollback segment records
updated with SCN
LGWR writes SGA redo log
entries to the online redo
log file
Oracle releases locks
Oracle marks the
transaction complete.