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  2. Rollback (data management) - Wikipedia

    en.wikipedia.org/wiki/Rollback_(data_management)

    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.

  3. Savepoint - Wikipedia

    en.wikipedia.org/wiki/Savepoint

    Issuing the commands ROLLBACK or COMMIT will also discard any savepoints created since the start of the main transaction. Savepoints are defined in the SQL standard and are supported by all established SQL relational databases, including PostgreSQL , Oracle Database , Microsoft SQL Server , MySQL , IBM Db2 , SQLite (since 3.6.8), Firebird , H2 ...

  4. Replay Protected Memory Block - Wikipedia

    en.wikipedia.org/wiki/Replay_Protected_Memory_Block

    Anti-rollback protection for versioned data (keys, encrypted files, software, etc). [3] Storage for a Trusted Application [3] Some operating systems, such as Linux may provide a generic driver for accessing an RPMB device attached to an eMMC. [4]

  5. Wikipedia:Administrators' guide/Rollback - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Administrators...

    Additional relevant information can be found at Help:Reverting#Rollback.. As an admin (or rollbacker), you may spend much of your time reverting changes made to pages. You may be familiar with the undo feature, which undoes the last edit to a page, and manual reverts, which allow you to revert to any edit of a page by opening any page history revision, clicking edit, and saving.

  6. Optimistic concurrency control - Wikipedia

    en.wikipedia.org/wiki/Optimistic_concurrency_control

    Mimer SQL is a DBMS that only implements optimistic concurrency control. [10] Google App Engine data store uses OCC. [11] The Apache Solr search engine supports OCC via the _version_ field. [12] The Elasticsearch search engine updates its documents via OCC. Each version of a document is assigned a sequence number, and newer versions receive ...

  7. Downgrade attack - Wikipedia

    en.wikipedia.org/wiki/Downgrade_attack

    A downgrade attack, also called a bidding-down attack, [1] or version rollback attack, is a form of cryptographic attack on a computer system or communications protocol that makes it abandon a high-quality mode of operation (e.g. an encrypted connection) in favor of an older, lower-quality mode of operation (e.g. cleartext) that is typically provided for backward compatibility with older ...

  8. What is rollback? How a potential new golf rule would affect ...

    www.aol.com/sports/rollback-potential-golf-rule...

    In short, rollback will require an adjustment to something that right now is working very well for most pros — driving the golf ball — and if there’s one thing golf pros loathe more than ...

  9. Backporting - Wikipedia

    en.wikipedia.org/wiki/Backporting

    Backporting is the action of taking parts from a newer version of a software system or software component and porting them to an older version of the same software. It forms part of the maintenance step in a software development process, and it is commonly used for fixing security issues in older versions of the software and also for providing new features to older versions.