
The Entity shape depicts a relational database table structure. This structure
is technically called a table scheme, to distinguish it from an actual table, which
includes a set of data rows. From now on however, we will often refer to a table
scheme informally as a table.
The Relationship shape is used to establish a connection from a foreign key
in one table to the column(s) that it references (typically a primary key in
another table).
2. Select the Entity shape and drag it onto the drawing window. This creates a local
instance of the shape, and names it Table 1.
When a table shape is selected, its Database Properties window is also dis-
played.