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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.
NetVault Backup can protect Windows Server, Linux, Solaris, FreeBSD, AIX, HP-UX, Hyper-V, and VMware. [1] It also can back up a variety of applications and NAS devices (NDMP) using so-called Plug-ins. The list includes Microsoft SQL Server, Oracle, Microsoft Exchange Server, Lotus Notes, IBM Db2, Sybase, and others.
In databases, and transaction processing (transaction management), snapshot isolation is a guarantee that all reads made in a transaction will see a consistent snapshot of the database (in practice it reads the last committed values that existed at the time it started), and the transaction itself will successfully commit only if no updates it has made conflict with any concurrent updates made ...
Virtual drive restore: A specific VM hard drive recovery; Application-item recovery: Granular recovery of items from Microsoft Exchange Server, Microsoft SharePoint, Microsoft Active Directory, Microsoft SQL Server and Oracle Databases, as well as recovery of single files and VMs from storage snapshots for existing storage partners.
In Windows Server 2003, VSS is used to create incremental periodic snapshots of data of changed files over time. A maximum of 64 snapshots are stored on the server and are accessible to clients over the network. This feature is known as Shadow Copies for Shared Folders and is designed for a client–server model. [12]
Proxmox Backup Server: AGPLv3.0 Rust No No Yes Yes Yes March 29, 2023 [3] Restic: BSD 2-Clause License Go Yes Yes Yes No Yes Nov 8, 2024: rdiff-backup: GPL Python Yes Yes Yes Optional (JBackpack, Rdiffweb, Minarca) Yes Sep 8, 2023
In information technology, a backup, or data backup is a copy of computer data taken and stored elsewhere so that it may be used to restore the original after a data loss event. The verb form, referring to the process of doing so, is " back up ", whereas the noun and adjective form is " backup ". [ 1 ]
Traditional backups only restore data from the time the backup was made. True continuous data protection, in contrast to "snapshots", has no backup schedules. [ 5 ] When data is written to disk, it is also asynchronously written to a second location, either another computer over the network [ 6 ] or an appliance. [ 7 ]