Transactions & Concurrency
Interview Questions
- What does ACID mean?
- What is a transaction?
- Explain COMMIT and ROLLBACK.
- What are PostgreSQL isolation levels?
- What is a dirty read?
- What is a non-repeatable read?
- What is a phantom read?
- What is a database lock?
- What causes a deadlock?
- How would you prevent or troubleshoot deadlocks?
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