哪些网站可以练习sql

以下是一些可以练习SQL的网站：

1. HackerRank - https://www.hackerrank.com/domains/sql

2. SQL Zoo - https://sqlzoo.net/

3. LeetCode - https://leetcode.com/problemset/database/

4. Codecademy - https://www.codecademy.com/learn/learn-sql

5. W3Schools - https://www.w3schools.com/sql/

6. Mode Analytics - https://mode.com/sql-tutorial/

7. SQL Fiddle - http://sqlfiddle.com/

8. SQL Bolt - https://sqlbolt.com/

9. SQL Exercises - https://www.w3resource.com/sql-exercises/

10. SQL for Data Analysis - https://www.kaggle.com/learn/sql-for-data-analysis