ACID Definition(Taken from Wikipedia)
In computer science, ACID (Atomicity, Consistency, Isolation, Durability) is a set of properties that guarantee that database transactions are processed reliably. In the context of databases, a single logical operation on the data is called a
transaction. For example, a transfer of funds from one bank account to another,
even involving multiple changes such as debiting one account and crediting
another, is a single transaction.
ACID (an acronym for
Atomicity Consistency Isolation Durability) is a concept that Database
Professionals generally look for when evaluating databases and application
architectures. For a reliable database all this four attributes should be
achieved.
Atomicity: It is an all-or-none
proposition.
Consistency: It guarantees that a
transaction never leaves your database in a half-finished state.
Isolation: It keeps transactions
separated from each other until they’re finished.
Durability: It guarantees that the
database will keep track of pending changes in such a way that the server can
recover from an abnormal termination.
