SQL Transactions and ACID Properties
SQL Transactions and ACID Properties
MediumSQL0% accepted
Explain ACID properties with SQL transaction examples. Cover isolation levels (READ COMMITTED, REPEATABLE READ, SERIALIZABLE) and the anomalies each prevents: dirty read, non-repeatable read, phantom read.
Approach
Explain ACID properties and SQL isolation levels with anomaly examples.
Input
Bank transfer: debit account A, credit account B - server crashes after debit
Output
Atomicity: ROLLBACK ensures debit reversed; both operations succeed or neither does
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