> For the complete documentation index, see [llms.txt](https://hezhiqiang-book.gitbook.io/mysql/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hezhiqiang-book.gitbook.io/mysql/di-yi-zhang/index-8.md).

# 第九节 修改数据

- [9.1 INSERT 语句](https://hezhiqiang-book.gitbook.io/mysql/di-yi-zhang/index-8/insert-yu-ju.md)
- [9.2 INSERT IGNORE](https://hezhiqiang-book.gitbook.io/mysql/di-yi-zhang/index-8/insert-ignore.md)
- [9.3 UPDATE 语句](https://hezhiqiang-book.gitbook.io/mysql/di-yi-zhang/index-8/update-yu-ju.md)
- [9.4 UPDATE JOIN 语句](https://hezhiqiang-book.gitbook.io/mysql/di-yi-zhang/index-8/update-join-yu-ju.md)
- [9.5 DELETE](https://hezhiqiang-book.gitbook.io/mysql/di-yi-zhang/index-8/delete.md)
- [9.6 ON DELETE CASCADE.](https://hezhiqiang-book.gitbook.io/mysql/di-yi-zhang/index-8/on-delete-cascade.md)
- [9.7 DELETE JOIN](https://hezhiqiang-book.gitbook.io/mysql/di-yi-zhang/index-8/delete-join.md)
- [9.8 REPLACE 语句](https://hezhiqiang-book.gitbook.io/mysql/di-yi-zhang/index-8/replace-yu-ju.md)
- [9.9 PREPARE 语句](https://hezhiqiang-book.gitbook.io/mysql/di-yi-zhang/index-8/prepare-yu-ju.md)