# ov\_mann

The pointer to the overland Manning's n database is a foreign key referencing [name](https://swatplus.gitbook.io/io-docs/introduction-1/landuse-and-management/ovn_table.lum/name_ovn) in [ovn\_table.lum](https://swatplus.gitbook.io/io-docs/introduction-1/landuse-and-management/ovn_table.lum).