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  2. Redo log - Wikipedia

    en.wikipedia.org/wiki/Redo_log

    In the Oracle RDBMS environment, redo logs comprise files in a proprietary format which log a history of all changes made to the database. Each redo log file consists of redo records. A redo record, also called a redo entry, holds a group of change vectors, each of which describes or represents a change made to a single block in the database.

  3. Oracle Data Guard - Wikipedia

    en.wikipedia.org/wiki/Oracle_Data_Guard

    LNS (log-write network-server) and ARCH (archiver) processes running on the primary database select archived redo logs and send them to the standby-database host, [7] where the RFS (remote file server) background process within the Oracle instance performs the task of receiving archived redo logs originating from the primary database and ...

  4. TimesTen - Wikipedia

    en.wikipedia.org/wiki/TimesTen

    Oracle TimesTen In-Memory Database is an in-memory, relational database management system with persistence and high availability. Originally designed and implemented at Hewlett-Packard labs in Palo Alto, California , TimesTen spun out into a separate startup in 1996 and was acquired by Oracle Corporation in 2005.

  5. Automatic Storage Management - Wikipedia

    en.wikipedia.org/wiki/Automatic_Storage_Management

    Automatic Storage Management (ASM) is a feature provided by Oracle Corporation within the Oracle Database from release Oracle 10g (revision 1) onwards. ASM aims to simplify the management of database datafiles, control files and log files.

  6. Sqlnet.ora - Wikipedia

    en.wikipedia.org/wiki/Sqlnet.ora

    In database computing, sqlnet.ora is a plain-text configuration file that contains the information (like tracing options, encryption, route of connections, external naming parameters etc.) on how both Oracle server and Oracle client have to use Oracle Net (formerly Net8 or SQL*Net) capabilities for networked database access.

  7. Oracle LogMiner - Wikipedia

    en.wikipedia.org/wiki/Oracle_LogMiner

    Oracle LogMiner, a utility provided by Oracle Corporation to purchasers of its Oracle database, provides methods of querying logged changes made to an Oracle database, principally through SQL commands referencing data in Oracle redo logs. A GUI interface for the functionality comes with the Oracle Enterprise Manager product.

  8. Write-ahead logging - Wikipedia

    en.wikipedia.org/wiki/Write-ahead_logging

    A write ahead log is an append-only auxiliary disk-resident structure used for crash and transaction recovery. The changes are first recorded in the log, which must be written to stable storage, before the changes are written to the database. [2] The main functionality of a write-ahead log can be summarized as: [3]

  9. Transaction log - Wikipedia

    en.wikipedia.org/wiki/Transaction_log

    Physically, a log is a file listing changes to the database, stored in a stable storage format. If, after a start, the database is found in an inconsistent state or not been shut down properly, the database management system reviews the database logs for uncommitted transactions and rolls back the changes made by these transactions .