Source: wikibot/relation-of-degree-zero
= Relation of degree zero
{wiki=Relation_of_degree_zero}
In the context of databases and relational algebra, a relation of degree zero is a special case of a relation where there are no attributes (or columns). In relational database terminology, the degree of a relation (or table) refers to the number of attributes it contains. When a relation has a degree of zero, it means that it is essentially an empty set without any data or structure.