Data Model to Relational Database

Feature in Model	Technique Used in Relational Database
Class	add a table with a primary key
Attribute	add a field with an appropriate data type to the table
Object	add a row of data to the table
1-Many Relationship	use a foreign key, i.e., a reference to a particular row (or object) in the table at the 1 end of the relationship
Many-Many Relationshop	add a new table and two 1-Many relationships
OPtionality of 1 at the 1 end of a relationship	make the value of the foreignh key required
Inheritence	add a table for each class, with 1-1 relationships between each child class and the parent (not an exact representation but OK)

from Table 7-1. Techiniques to represent aspects of the data model,
pp. 115, Beginning Database Design From Novice to Professional, Clare Churcher