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SQL Quiz: ACID, indexes, transactions and CAP

Test your advanced SQL: ACID properties, isolation levels, normalization, B+ tree indexes, execution plans, views, triggers, NoSQL databases, the CAP theorem and locks.

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  1. What does the letter A stand for in the acronym ACID?
  2. Which ANSI isolation level forbids dirty reads but allows non-repeatable reads?
  3. What does the second normal form (2NF) require?

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