> For the complete documentation index, see [llms.txt](https://ldbmcs.gitbook.io/java/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ldbmcs.gitbook.io/java/shu-ju-ku-17.md).

# 数据库

- [MySQL](https://ldbmcs.gitbook.io/java/shu-ju-ku-17/mysql.md)
- [为什么数据库不应该使用外键](https://ldbmcs.gitbook.io/java/shu-ju-ku-17/mysql/wei-shi-mo-shu-ju-ku-bu-ying-gai-shi-yong-wai-jian.md)