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In computer science, Algorithms for Recovery and Isolation Exploiting Semantics, or ARIES, is a recovery algorithm designed to work with a no-force, steal database approach; it is used by IBM Db2, Microsoft SQL Server and many other database systems. [1] IBM Fellow Chandrasekaran Mohan is the primary inventor of the ARIES family of algorithms. [2]
SQL refers to Structured Query Language, a kind of language used to access, update and manipulate database. In SQL, ROLLBACK is a command that causes all data changes since the last START TRANSACTION or BEGIN to be discarded by the relational database management systems (RDBMS), so that the state of the data is "rolled back" to the way it was before those changes were made.
The problem of database repair is a question about relational databases which has been studied in database theory, and which is a particular kind of data cleansing. The problem asks about how we can "repair" an input relational database in order to make it satisfy integrity constraints .
Recovery is also related to the type of Data Loss Event. Recovering a single lost file is substantially different from recovering an entire system that was destroyed in a disaster. An effective backup regimen has some proportionality between the magnitude of Data Loss and the magnitude of effort required to recover.
System Center Data Protection Manager (DPM) is a software product from Microsoft that provides near-continuous data protection and data recovery in a Microsoft Windows environment. It is part of the Microsoft System Center family of products and is Microsoft's first entry into the near-continuous backup and data recovery.
Point-in-time recovery (PITR) in the context of computers involves systems, often databases, whereby an administrator can restore or recover a set of data or a particular setting from a time in the past.
Data recovery can be performed on an entire server or individual files. [4] For instance, an Exchange Server can be restored in its entirety, just the database or individual mail items (E.g. E-mails, attachments, calendars, contacts). [5]
Recovery Options: Catalog-assisted granular recovery of objects, files, folders, applications, or VMs (including Exchange, SharePoint, SQL Server, and Active Directory) directly from storage, with no mounting or staging. Restore to different targets or hardware (Dissimilar Hardware Recovery) Restore to physical or virtual servers [20]