SQL 练习
You can test your SQL skills with W3Schools' Exercises.
练习
We have gathered a variety of SQL exercises (with answers) for each SQL Chapter.
Try to solve an exercise by filling in the missing parts of a code. If you're stuck, hit the "Show Answer" button to see what you've done wrong.
Count Your Score
You will get 1 point for each correct answer. Your score and total score will always be displayed.
If you don't know SQL, we suggest that you read our SQL 教程 from scratch.