redo log file in oracle

redo log file in oracle

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Using LogMiner to Analyze Redo Log Files - Oracle

    https://docs.oracle.com/cd/B19306_01/server.102/b14215/logminer.htm
    The second redo log file to pick up any possible DDLs contained within it. The third log file to retrieve the data of interest. Call DBMS_LOGMNR.START_LOGMNR again with the same requested range. LogMiner will begin with redo log file 3; it no longer needs to read redo log file 2, because it has already processed any DDL statements contained ...
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    https://docs.oracle.com/cd/B19306_01/server.102/b14215/logminer.htm

Find Redo Log Size / Switch Frequency / Location in Oracle

    https://orahow.com/find-redo-log-size-switch-frequency-location/
    06.10.2020 · Current: The redo log file that log writer (LGWR) is actively writing is called the current redo log file. Active: Redo log file that are required for instance recovery are called active redo log files. Inactive: Redo log files that are no longer required for instance recovery are called inactive redo log files. Check Redo Log Size in Oracle SQL> set lines 250 SQL> col …
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    https://orahow.com/find-redo-log-size-switch-frequency-location/

Managing Archived Redo Logs - Oracle

    https://docs.oracle.com/cd/B19306_01/server.102/b14231/archredo.htm
    An archived redo log file is a copy of one of the filled members of a redo log group. It includes the redo entries and the unique log sequence number of the identical member of the redo log group. For example, if you are multiplexing your redo log, and if group 1 contains identical member files a_log1 and b_log1, then the archiver process (ARC n) will archive one of these …
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    https://docs.oracle.com/cd/B19306_01/server.102/b14231/archredo.htm

Glossary - Oracle

    https://docs.oracle.com/cd/E11882_01/server.112/e40540/glossary.htm
    A member of the online redo log that has been archived by Oracle Database. The archived redo log files can be applied to a database backup in media recovery. ARCHIVELOG mode . A mode of the database that enables the archiving of the online redo log. ascending index. An index in which data is stored in ascending order. By default, character data is ordered by the binary …
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    https://docs.oracle.com/cd/E11882_01/server.112/e40540/glossary.htm

MySQL :: MySQL 8.0 Reference Manual :: 15.6.5 Redo Log

    https://dev.mysql.com/doc/refman/8.0/en/innodb-redo-log.html
    The redo log archiving feature, introduced in MySQL 8.0.17, addresses this issue by sequentially writing redo log records to an archive file in addition to the redo log files. Backup utilities can copy redo log records from the archive file as necessary, …
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    https://dev.mysql.com/doc/refman/8.0/en/innodb-redo-log.html

RMAN Backup Control File Tips - dba-oracle.com

    http://www.dba-oracle.com/t_rman_29_backup_control_file.htm
    25.03.2012 · archive log thread 1 sequence 2 is already on disk as file C:\oracle\product\10.2.0\oradata\test\redo01.log archive log filename=C:\oracle\product\10.2.0\oradata\test\redo01.log thread=1 sequence=2 media recovery complete, elapsed time: 00:00:01 Finished recover at 19-AUG-09 #Now, we can easily open …
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    http://www.dba-oracle.com/t_rman_29_backup_control_file.htm

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