Database Systems 6th Edition by Ramez Elmasri, Shamkant B. Navathe

تمرين 1

. There are 435 congresspersons in the U.S. House of Representatives.
. States have between one (AK, DE, MT, ND, SD, VT, and WY) and 52 (CA) representatives.
. M represents number of bills during the 2-year session.
Draw the ER diagram