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The Oracle Zero Data Loss Recovery Appliance [1] (Recovery Appliance or ZDLRA) is a computing platform that includes Oracle Corporation (Oracle) Engineered Systems hardware and software built for backup and recovery of the Oracle Database. It performs continuous data protection, validates backups, automatically resolves many issues, and ...
RMAN (Recovery Manager) is a backup and recovery manager supplied for Oracle databases (from version 8) created by the Oracle Corporation. [1] It provides database backup, restore, and recovery capabilities addressing high availability and disaster recovery concerns.
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] Allow the page cache to buffer updates to disk-resident pages while ensuring durability semantics in the larger context of a database system.
Physical standby databases can function either in managed-recovery mode or in read-only mode, but not in both modes at the same time (unless the databases are at Oracle Database 11.1 or higher and the Active Data Guard option is licensed - see below).
The conflict is materialized if the requested conflicting operation is actually executed: in many cases a requested/issued conflicting operation by a transaction is delayed and even never executed, typically by a lock on the operation's object, held by another transaction, or when writing to a transaction's temporary private workspace and ...
In order to port Rdb to these platforms, an abstraction layer named the Common Operating System Interface (COSI) was implemented to isolate the database from the underlying operating system. [ 16 ] Digital provided a relational database for their Ultrix operating system named ULTRIX/SQL , but it was based on Ingres instead of Rdb.
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Oracle Reports is a tool for developing reports against data stored in an Oracle database. Oracle Reports consists of Oracle Reports Developer (a component of the Oracle Developer Suite ) and Oracle Application Server Reports Services (a component of the Oracle Application Server ).