# Page Not Found

The URL `ref/mdb/system-variables/datetime_format` does not exist.

You might be looking for one of these pages:
- [DATE_FORMAT](https://mariadb.com/docs/server/reference/sql-functions/date-time-functions/date_format.md)
- [TIME_FORMAT](https://mariadb.com/docs/server/reference/sql-functions/date-time-functions/time_format.md)
- [GET_FORMAT](https://mariadb.com/docs/server/reference/sql-functions/date-time-functions/get_format.md)
- [DATETIME](https://mariadb.com/docs/server/reference/data-types/date-and-time-data-types/datetime.md)
- [Optimizing key_buffer_size](https://mariadb.com/docs/server/ha-and-performance/optimization-and-tuning/system-variables/optimizing-key_buffer_size.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://mariadb.com/docs/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://mariadb.com/docs/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/docs/server/reference/sql-functions/date-time-functions/date_format.md`)
- Use `Accept: text/markdown` header for content negotiation