DB2 for the ORACLE DBA - GSE Belux
DB2 for the ORACLE DBA - GSE Belux
DB2 for the ORACLE DBA - GSE Belux
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Oracle<br />
The redo log is a set of files that protect altered database data in memory that has<br />
not been written to <strong>the</strong> datafiles. The redo log can consist of two parts: <strong>the</strong> online<br />
redo log and <strong>the</strong> archived redo log.<br />
Redo log files record all changes made to <strong>the</strong> database, and are used <strong>for</strong> data<br />
recovery. If <strong>the</strong> redo log files are multilexed, <strong>the</strong> same redo log in<strong>for</strong>mation is<br />
written to multiple online redo log files.<br />
•Redo files are written to in a circular fashion<br />
•Must be at least 2 redo log groups<br />
Rollback Segments exist only until data is committed.<br />
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