In the context of a transaction, the acronym refers to four key properties of a transaction Atomicity, Consistency, Isolation, and Durability.Ītomicity refers to the idea that database transactions (i.e., a sequence of operations that must be treated as a unit) are either completed in their entirety or not at all. This ensures that the data in the database remains consistent, even if a failure or error occurs. The key characteristic of a transaction is that it is atomic, meaning that it is either completed in its entirety or not completed at all. It typically includes one or more SQL statements that read and/or update the data in the database. IntroductionĪ database transaction is a unit of work performed against a database. This is where database transaction helps in maintaining the correct state. For that to happen, either each action should be completed or none of them. These instructions must be executed correctly for the account balance to remain accurate post-transfer activity. Increment the balance of the destination account.Decrement the balance of the source account.In this case, the transaction might include instructions to: For example, imagine that you are transferring money from one bank account to another. To understand how transactions work, it's helpful to think of them as instructions that must be executed in a specific order.
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