# 第九节 修改数据

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