ACID guarantees that database transactions are executed reliably:

• Atomicity: 'All-or-Nothing' execution. If any statement in a transaction fails, all changes are fully rolled back.
• Consistency: Ensures transactions transition the database from one valid state to another, preserving all schema constraints.
• Isolation: Concurrent transactions execute without interfering with one another's uncommitted state.
• Durability: Once a transaction commits, its changes persist permanently on disk even during system crashes.