Question

explain the term relational schema, relation state, domain, degree of a relation.​

Answer 1

Explanation:

${\huge\fbox\pink{A}\fbox\blue{N}\fbox\purple{S}\fbox\green{W}\fbox\red{E}\fbox\orange{R}}$

relation state,: A relation (or relation state) r(R) is a mathematical relation of degree n on the domains dom(A1), dom(A2), dom(An), which is a subset of the Cartesian product (denoted by ×) of the domainsdegree of a relation: The degree (or arity) of a relation is the number of attributes n of its relationschema .