Transactions and Migrations
Implement database transactions for atomic operations and manage schema changes efficiently with TypeORM migrations.
Atomic Operations: Transactions
Imagine transferring money between two bank accounts. If the deduction from one account succeeds but the addition to the other fails, your data is inconsistent!
Database transactions solve this by grouping multiple database operations into a single, atomic unit. Either all operations succeed (commit), or none of them do (rollback).
Understanding ACID Properties
Transactions ensure data reliability by adhering to ACID properties:
- Atomicity: All or nothing.
- Consistency: Database state remains valid.
- Isolation: Concurrent transactions don't interfere.
- Durability: Committed changes are permanent.
These properties are vital for maintaining data integrity in complex applications.
All lessons in this course
- Custom TypeORM Repositories
- Transactions and Migrations
- Database Seeding and Testing