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Definition of Atomic transaction

Atomic transaction Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
In database systems, atomicity (or atomicness; from Greek a-tomos, undividable) is one of the ACID transaction properties. In an atomic transaction, a series of database operations either all occur, or nothing occurs. A guarantee of atomicity prevents updates to the database occurring only partially, which can cause greater problems than rejecting the whole series outright. In other words, atomicity means indivisibility and irreducibility.

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