Schema

The schema (description) of a Relation is denoted by $R(A_1,A_2,...,A_n)$.

• $R$ is the name of the relation.
• The attributes of the relation are $A_1$, $A_2$, …, $A_n$.
• Each attribute has a domain / set of valid values.

Example: CUSTOMER(Id, Name, Address, Phone#).