DBMS: Rollback (Definitions)

"A Transact-SQL statement used with a user-defined transaction (before a commit transaction has been received) that cancels the transaction and undoes any changes that were made to the database." (Karen Paulsell et al, "Sybase SQL Server: Performance and Tuning Guide", 1996)

"Rollback of a user-specified transaction to the last savepoint inside a transaction or to the beginning of a transaction." (Microsoft Corporation, "SQL Server 7.0 System Administration Training Kit", 1999)

"Terminates a transaction so that all resources updated within a transaction revert to the original state before the transaction started." (Atul Apte, "Java Connector Architecture: Building Custom Connectors and Adapters", 2002)

"The point in a transaction when all updates to any resources involved in the transaction are reversed." (Kim Haase et al, "The J2EE Tutorial", 2002)

"To remove the updates performed by one or more partially completed transactions. Rollbacks are required to restore the integrity of a database after an application, database, or system failure." (Anthony Sequeira & Brian Alderman, "The SQL Server 2000 Book", 2003)

"Rolling back a transaction means you are undoing the actual transaction you are currently in." (Joseph L Jorden & Dandy Weyn, "MCTS Microsoft SQL Server 2005: Implementation and Maintenance Study Guide - Exam 70-431", 2006)

"This command undoes any database changes not yet committed to the database using the COMMIT command." (Gavin Powell, "Beginning Database Design", 2006)

"A DBMS recovery technique that aborts active applications and attempts to reinstate the state of the database prior to initiating the applications active at the time the database failed." (S. Sumathi & S. Esakkirajan, "Fundamentals of Relational Database Management Systems", 2007)

"A process that reverts writes operations to ensure the consistency of all replica set members." (MongoDb, "Glossary", 2008)

"Undoes changes performed within a transaction before the transaction is committed." (Rod Stephens, "Beginning Database Design Solutions", 2008)

"An operation that returns the database to a previous state. The transaction can be rolled back completely, canceling a pending transaction, or to a specified point. Rollbacks allow the database to be restored to a valid state if invalid operations are performed or after the database server fails." (John Goodson & Robert A Steward, "The Data Access Handbook", 2009)

"A SQL command that restores the database table contents to their original condition (the condition that existed after the last COMMIT statement)." (Carlos Coronel et al, "Database Systems: Design, Implementation, and Management" 9th Ed., 2011)

"To undo the database statements performed prior to a commit of the transaction." (DAMA International, "The DAMA Dictionary of Data Management", 2011)

"An operation that ends a current transaction and cancels all the recent changes to the database until the previous checkpoint/ commit point." (Adam Gordon, "Official (ISC)2 Guide to the CISSP CBK" 4th Ed., 2015)

"The process of restoring a set of data or process state to a previous consistent state saved through a checkpoint operation." (O Sami Saydjari, "Engineering Trustworthy Systems: Get Cybersecurity Design Right the First Time", 2018)