
Remove Column
There are two ways to remove column, select the column and press the delete key or
click on the remove button (Figure 12–3)
Move Up and Move Down
Reorder the columns by selecting a column and then click Move Up or Move Down
until the column is in the desired position. (Figure 12–3)
12.4 Foreign Key Relationships
Create foreign key relationships between tables using the logical model stencil
“Relationship” shape. In Figure 12–8(a) the tables, State and Region, have no defined
relationship. Note that the State table has only the state code defined. In Figure 12–8(b),
the relationship shape was used to drag and drop a relationship connection ...