Data Systems⚪New

🧩 Transactions (ACID)

A mechanism to group several reads and writes into a logical unit.

⬇️ Foundation

The problem of getting several nodes to agree on something (e.g., who is the leader) in an unreliable network.

✔Student can explain the difference between 'Read Committed' and 'Serializable' isolation.

Transactions prevent all race conditions (ignoring weak isolation levels).