Week 6

Aggregations

Transactions

Indexes

Integrating with APIs

Integration Testing

Practice

Assignment

Back end Track

Under construction

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Implementation plan:

  1. What is a transaction — a unit of work
  2. The problem: partial updates and data inconsistency
  3. ACID properties: Atomicity, Consistency, Isolation, Durability
  4. BEGIN, COMMIT, ROLLBACK in SQL
  5. Transactions in Spring Boot: @Transactional annotation
  6. What happens when an exception occurs inside a transaction
  7. Transaction isolation levels (awareness: read committed, repeatable read)
  8. Exercise: implement a transactional operation in Spring Boot

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