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Python and SQL Bible

You're reading from  Python and SQL Bible

Product type Book
Published in Jun 2024
Publisher Packt
ISBN-13 9781836206279
Pages 519 pages
Edition 1st Edition
Languages
Author (1):
Cuantum Technologies LLC Cuantum Technologies LLC
Profile icon Cuantum Technologies LLC
Toc

Table of Contents (29) Chapters close

1. Who we are 2. Introduction
3. Chapter 1: Python: An Introduction 4. Chapter 2: Python Building Blocks 5. Chapter 3: Controlling the Flow 6. Chapter 4: Functions, Modules, and Packages 7. Chapter 5: Deep Dive into Data Structures 8. Chapter 6: Object-Oriented Programming in Python 9. Chapter 7: File I/O and Resource Management 10. Chapter 8: Exceptional Python 11. Chapter 9: Python Standard Library 12. Chapter 10: Python for Scientific Computing and Data Analysis 13. Chapter 11: Testing in Python 14. Chapter 12: Introduction to SQL 15. Chapter 13: SQL Basics 16. Chapter 14: Deep Dive into SQL Queries 17. Chapter 15: Advanced SQL 18. Chapter 16: SQL for Database Administration 19. Chapter 17: Python Meets SQL 20. Chapter 18: Data Analysis with Python and SQL 21. Chapter 19: Advanced Database Operations with SQLAlchemy 22. References
23. Conclusion
24. Where to continue?
25. Know more about us
Appendix A: Python Interview Questions
1. Appendix B: SQL Interview Questions
2. Appendix C: Python Cheat Sheet 3. Appendix D: SQL Cheat Sheet

19.6 Querying with Joins in SQLAlchemy

SQLAlchemy ORM is a useful tool for developers who need a high-level, Pythonic way to write SQL join operations. In fact, it provides a wide range of functionality that can be used to manipulate databases. One of its most useful features is the join function, which allows developers to combine the data from two tables based on a specified condition. This is particularly useful when dealing with large datasets that need to be processed quickly and efficiently.

In order to use the join function, developers must first select the two tables they want to combine using the select or select_from functions. Once these tables have been selected, the join function can be used to combine them based on a condition. This condition can be any valid SQL expression, and can be used to filter the data in a number of different ways.

Overall, SQLAlchemy ORM is a powerful tool that can help developers to write more efficient and effective code. Its join function...

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