Database Storage

Databases provide powerful storage for scraped data, enabling complex queries, updates, and long-term data management.

Why Use a Database?

SQLite - The Simple Choice

Inserting Data

Handling Duplicates

Querying Data

Using Context Managers

PostgreSQL Example

MongoDB for Flexible Data

Complete SQLite Scraper Storage

Key Takeaways

• SQLite is perfect for local scraping projects
• Use parameterized queries to prevent SQL injection
• Handle duplicates with INSERT OR IGNORE/REPLACE
• Use context managers for safe connection handling
• PostgreSQL for production and concurrent access
• MongoDB for flexible, schema-less data
• Always close connections when done
• Index columns you query frequently