1. Difference between is and == in Python

2. How to implement an iterator in Python

3. What are the differences between the engines in mysql

Mysql > select * from ‘on where having’

5. How does Redis start a transaction

6. What are the main functions of Redis

7. What are the common descriptors of Redis

8. What problems do YOU encounter in your daily projects and how do you solve them

9. The difference between __new__ and __init__ in Python

10. Common python functions for strings

11. Common data types of Redis

12. Redis persistence strategy

13. How to solve the high concurrency problem

14. Why mysql index does not apply to B tree, but uses B + tree

15. Python gil lock multithreading problem

16. How does Redis ensure data synchronization with mysql

Mysql uses master-slave replication. What if the slave library is delayed

How to use aysc function in celery

19. What is the reason for the high performance of Redis

20. What are the three paradigms of databases

21. Know the benefits of celery but what are the disadvantages of celery

Do you know how to tune mysql parameters