> For the complete documentation index, see [llms.txt](https://timhwang21.gitbook.io/index/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://timhwang21.gitbook.io/index/programming/databases.md).

# Databases

- [Metrics](https://timhwang21.gitbook.io/index/programming/databases/metrics.md)
- [Testing indexes](https://timhwang21.gitbook.io/index/programming/databases/testing-indexes.md): How to test indexes in MySQL without permanently applying them.