The document discusses the ACID properties of database transactions: Atomicity ensures transactions are all or nothing; Consistency ensures transactions change the database from one valid state to another; Isolation ensures transactions execute serially despite concurrent execution; Durability ensures transaction changes are permanent even if the database fails. Each property is managed by a different database component - transaction management, application programmer, concurrency control manager, and recovery manager respectively.

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ACID Property in DBMS
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2. Definition
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In computer science, ACID is a set of
properties of database transactions.
A - Atomicity
C - Consistency
I - Isolation
D - Durability

3. Atomicity
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Either all operation of a transaction occurs or
none. That means transactions will be atomic.
Maintained by Transaction Management
Component.

4. Consistency
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Consistency stands for correctness. This
property ensures that any transaction will
bring the database from one valid state to
another.
Responsibility of Application Programmer.

5. Isolation
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Ensures that concurrent execution results in a
system state that would be obtained if
transaction would be executed serially.
Managed by Concurrency Control Manager.

6. Durability
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Changes should be parmanent. The changes
must NOT be lost due to some database
failure.
Responsibility of Recovery Manager.

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