21. Databases

Using Databases and SQL

• 21.1. What is a database?
• 21.2. Database concepts
• 21.3. Database Browser for SQLite
• 21.4. Creating a database table
• 21.5. Structured Query Language summary
• 21.6. More SELECT Keywords
• 21.7. Spidering Twitter using a database
• 21.8. Basic data modeling
• 21.9. Programming with multiple tables
  • 21.9.1. Constraints in database tables
  • 21.9.2. Retrieve and/or insert a record
  • 21.9.3. Storing the friend relationship
• 21.10. Three kinds of keys
• 21.11. Using JOIN to retrieve data
• 21.12. Summary
• 21.13. Debugging
• 21.14. Glossary
• 21.15. Multiple Choice Questions
• 21.16. Mixed-Up Code Questions
• 21.17. Write Code Questions

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