Database Management System20805 marksRelation, instance, and schema
Define relation, instance and schema. Explain with example
Define relation, instance and schema. Explain with example [5]
A relation is a table with rows and columns. In the relational model, a relation is a mathematical concept based on set theory. It consists of: - A name (the relation name) - A set of attributes (columns) - A set of tuples (rows) A relation can be thought of as a two-dimensional table that stores...