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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.
Some of the metadata is maintained by the file system, for example last-modification date (and various other dates depending on the file system), location of the beginning of the file, the size of the file and if the file system backup utility has saved the current version of the files. These items cannot usually be altered by a user program.
Oracle Exadata (Exadata [1]) is a computing system optimized for running Oracle Databases. Exadata is a combined hardware and software platform that includes scale-out x86-64 compute and storage servers, RoCE networking, RDMA-addressable memory acceleration, NVMe flash, and specialized software.
ACFS [2] is a standard-based POSIX (Linux, UNIX) and Windows cluster file system with full cluster-wide file and memory mapped I/O cache coherency and file locking. ACFS provides direct I/O for Oracle database I/O workloads. ACFS implements indirect I/O however for general purpose files that typically perform small I/O for better response time.
Released with the first Oracle Database version 2 (there was no version 1), IAF provided a character mode interface to allow users to enter and query data from an Oracle database. It was renamed to Fast Forms with Oracle Database version 4 and added an additional tool to help generate a default form to edit with IAG, the form editor.
2011: Oracle Siebel 8.2 (Released in 2011) Oracle Sales Cloud; Oracle Fusion CRM; Oracle CRM On Demand; 2015: Oracle Siebel 15.0 (Released 11 May 2015) 2016: Oracle Siebel 16.0 (Released 29 Apr 2016) 2017: Oracle Siebel 17.0 (Released 31 Jul 2017) 2018: Oracle Siebel 18.0 (Released 23 Jan 2018) 2019: Oracle Siebel 19.0 (Released 21 Jan 2019)
In computer science, write-ahead logging (WAL) is a family of techniques for providing atomicity and durability (two of the ACID properties) in database systems. [1]A write ahead log is an append-only auxiliary disk-resident structure used for crash and transaction recovery.
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.