What is On-line Redo Log?

What is On-line Redo Log?
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The On-line Redo Log is a set of tow or more  on-line redo files that record all committed changes made to the database.  Whenever a transaction is committed, the corresponding redo entries  temporarily stores in redo log buffers of the SGA are written to an on-line  redo log file by the background
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Related questions

What is Mirrored on-line Redo Log?

Description : What is Mirrored on-line Redo Log?

Last Answer : A mirrored on-line redo log consists of copies of on-line redo log files physically located on separate disks, changes made to one member of the group are made to all members.

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Description : What is a Redo Log?

Last Answer : The set of Redo Log files YSDATE,UID,USER or USERENV SQL functions, or the pseudo columns LEVEL or ROWNUM.

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Last Answer : The primary function of the redo log is to record all changes made to data.

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