The figure shows the projects_objtab object table with lines connecting the table's attributes
team_ntab to an outlying schematic of the
people_objtab object table.
The lines indicate that the attributes of the projects table (
projects_objtab) both use
REFs to pick out rows in the people object table (
The figure is a graphical representation of the
projects_objtab statements that precede the figure in the text.