๐ฆ๐ค๐ ๐๐ ๐ก๐ผ๐ฆ๐ค๐ ๐ถ๐ป ๐ฎ๐ฌ๐ฎ๐ฑ: ๐ ๐๐ฒ๐ฐ๐ถ๐๐ถ๐ผ๐ป ๐๐๐ถ๐ฑ๐ฒ
Stop asking which database is better. Pick the tool for your specific need. Most systems now use both.
Choose your database:
- PostgreSQL: Best for most tasks. Handles relational data and JSON.
- MongoDB: Best for flexible documents.
- DynamoDB: Best for fast key-value access.
- Cassandra: Best for massive write loads.
- Graph databases: Best for connected data.
Database best practices:
- Design your schema before writing code.
- Version every migration.
- Test migrations on production data copies.
- Index columns used in filters and joins.
- Fix the N+1 query problem.
- Use connection pooling to save resources.
Performance and safety:
- Log slow queries.
- Use EXPLAIN ANALYZE to find bottlenecks.
- Set statement timeouts to stop runaway queries.
- Practice restoring backups every month.
- Use point-in-time recovery for production.
Your action plan:
- This week: Fix your three slowest queries.
- This month: Set up connection pooling.
- This quarter: Run a full recovery drill.