# Page Not Found

The URL `ref/mdb/functions/COLUMN_ADD` does not exist.

You might be looking for one of these pages:
- [COLUMN_ADD](https://mariadb.com/docs/server/reference/sql-functions/special-functions/dynamic-columns-functions/column_add.md)
- [DATE_ADD](https://mariadb.com/docs/server/reference/sql-functions/date-time-functions/date_add.md)
- [ROUND](https://mariadb.com/docs/server/reference/sql-functions/numeric-functions/round.md)
- [PERIOD_ADD](https://mariadb.com/docs/server/reference/sql-functions/date-time-functions/period_add.md)
- [COLUMN_GET](https://mariadb.com/docs/server/reference/sql-functions/special-functions/dynamic-columns-functions/column_get.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/special-functions/dynamic-columns-functions/column_add.md`)
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