How do atomicity and consistency work together?

Can you explain how atomicity and consistency work together in databases?

Sure! Atomicity ensures that a transaction is all-or-nothing, while consistency ensures that a transaction brings the database from one valid state to another.

What happens if a transaction fails? How does atomicity handle that?

If a transaction fails, atomicity guarantees that all changes made during the transaction are rolled back, leaving the database unchanged.

And how does consistency come into play during this process?

Consistency ensures that even after a transaction is rolled back, the database remains in a valid state, adhering to all defined rules and constraints.

Can you give me an example of a situation where both are important?

Absolutely! In a banking system, transferring money between accounts must be atomic to prevent partial updates, and consistent to ensure no account ends up with invalid balances.