What is Atomic transaction?

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Ligon Gopinathan

  • Jan 1st, 2007
 

An atomic transaction is a database transaction or a hardware transaction which either completely occurs, or completely fails to occur. A prosaic example is pregnancy - you can't be "halfway pregnant"; you either are or you aren't

http://en.wikipedia.org/wiki/Atomic_transaction

Autonomous transactions are independent transactions that can be called from within another transaction. An autonomous transaction lets you leave the context of the calling transaction, perform some SQL operations, commit or undo those operations, and then return to the calling transaction's context and continue with that transaction.

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