codify magnitude database domain name

i've got doubt concerning fields databases wich measures competence displayed opposite units nonetheless stored wholly one, such "height", example.

where should "pattern unit" stated?. course, documentation, etc... nonetheless know nobody reads support self-docummented things preferrable.

from receptive indicate view, cruise coding database domain (such height_cm example)?.

i uncanny during initial look, nonetheless i receptive prevaricate any mistakes opposite understanding database directly "pattern unit" never change.

what think?.

regards.