field: Fields describe a single aspect of each member of a table. A student record, for instance, might contain a last name field, a first name field, a date of birth field and so on. All records have exactly the same structure, so they contain the same fields.
Many jurisdictions require one or more bicycle lights to be fitted to bicycles ridden at night â generally a white light in the front and a red light at the back.
A bicycle operated between sunset and sunrise must be equipped with a lamp on the front exhibiting a white light visible from 500 feet to the front and both a red reflector and a lamp on the rear exhibiting a red light visible from 600 feet to the rear.