relational model represents database in collection of relations relation simply means a table.
some vocabs
- tuple - A single row in relation.(a single row of table). Also known as row or record.Row mtlb horizontal wali lines.
- Attribute- Named Column of relation is attribute. Attribute = column name. they define waht kind of information is stored.
- Domain- A set of permissible values an attribute can take. Permissible values means values that are allowed.
- Degree and cardinality- Degree means numbers of attributes(columns) in the relation whereas Cardinality means number of tuples(rows) in the relation.