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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.
A savepoint is a way of implementing subtransactions (also known as nested transactions) within a relational database management system by indicating a point within a transaction that can be "rolled back to" without affecting any work done in the transaction before the savepoint was created. Multiple savepoints can exist within a single ...
1. In the context of a database this is often easily achieved using transactions and the commit/rollback mechanism. [1] Compensating transaction logic could be implemented as additional on top of database supporting commit/rollback. In that case, we can decrease business transaction granularity.
A database transaction symbolizes a unit of work, performed within a database management system (or similar system) against a database, that is treated in a coherent and reliable way independent of other transactions. A transaction generally represents any change in a database. Transactions in a database environment have two main purposes:
Over 30 built-in database refactorings; Extensibility to create custom changes; Update database to current version; Rollback last X changes to database; Rollback database changes to particular date/time; Rollback database to "tag" SQL for Database Updates and Rollbacks can be saved for manual review; Stand-alone IDE and Eclipse plug-in
Heroku Postgres is the Cloud database (DBaaS) service for Heroku based on PostgreSQL. Heroku Postgres provides features like continuous protection, rollback, and high availability; also forks, followers, and data clips. Heroku Redis Heroku Redis is the customized Redis from Heroku to provide a better developer experience. It is fully managed ...