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An atomic transaction is an indivisible and irreducible series of database operations such that either all occur, or none occur. [1] A guarantee of atomicity prevents partial database updates from occurring, because they can cause greater problems than rejecting the whole series outright.
Alternatively, we may say that a logical transaction may be composed of several physical transactions. Unless and until all component physical transactions are executed, the logical transaction will not have occurred. An example of an atomic transaction is a monetary transfer from bank account A to account B.
Web Service Atomic Transaction is an OASIS standard. To achieve all-or-nothing property for a group of services, it defines three protocols (completion, volatile two-phase commit, and durable two-phase commit), and a set of services.
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.
Atomicity (database systems), a property of database transactions which are guaranteed to either completely occur, or have no effects; Atomicity (programming), an operation appears to occur at a single instant between its invocation and its response; Atomicity, a property of an S-expression, in a symbolic language like Lisp
In transaction processing, databases, and computer networking, the two-phase commit protocol (2PC, tupac) is a type of atomic commitment protocol (ACP). It is a distributed algorithm that coordinates all the processes that participate in a distributed atomic transaction on whether to commit or abort (roll back) the transaction.
The goal of transactional memory systems is to transparently support regions of code marked as transactions by enforcing atomicity, consistency and isolation. A transaction is a collection of operations that can execute and commit changes as long as a conflict is not present.
A distributed transaction operates within a distributed environment, typically involving multiple nodes across a network depending on the location of the data.A key aspect of distributed transactions is atomicity, which ensures that the transaction is completed in its entirety or not executed at all.