# Page Not Found

The URL `orm-and-active-record/<https:/www.youtube.com/embed/WVBWlnUghOI` does not exist.

You might be looking for one of these pages:
- [ORM And Active record](https://certil-remy.gitbook.io/learn/orm-and-active-record.md)
- [Why an ORM is Useful](https://certil-remy.gitbook.io/learn/orm-and-active-record/untitled.md)
- [Mapping Ruby Classes to Database Tables](https://certil-remy.gitbook.io/learn/orm-and-active-record/untitled-1.md)
- [Mapping Classes to Tables Lab](https://certil-remy.gitbook.io/learn/orm-and-active-record/untitled-2.md)
- [Mapping Database Tables to Ruby Objects](https://certil-remy.gitbook.io/learn/orm-and-active-record/untitled-3.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://certil-remy.gitbook.io/learn/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://certil-remy.gitbook.io/learn/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/learn/orm-and-active-record.md`)
- Use `Accept: text/markdown` header for content negotiation