![]() RDBMS is the basis for SQL, and for all modern database systems like MS SQL Server, IBM DB2, Oracle, MySQL, and Microsoft Access.Ī Relational database management system (RDBMS) is a database management system (DBMS) that is based on the relational model as introduced by E. A relation having three attributes is said to have a relation of degree 3.Ĭardinality: The number of tuples or rows in a relation is termed cardinality.RDBMS stands for Relational Database Management System. Tuple: The rows of tables in a relationship are generally termed Tuples.Īttributes: The columns or fields of a table are termed Attributes.ĭegree: The number of attributes in a relation determines the degree of the relation.
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