Author Question: In crow's foot style E-R diagrams, a crow's foot mark on the relationship line near an entity ... (Read 143 times)

plus1 · **on:** Jul 7, 2018

In crow's foot style E-R diagrams, a crow's foot mark on the relationship line near an entity indicates:

A) a minimum cardinality of zero.
B) a minimum cardinality of one.
C) a maximum cardinality of one.
D) a maximum cardinality of many.
E) Both B and C

Question 2

Database administrators must make sure that ________ measures are in place and enforced so that only authorized users can take authorized actions at appropriate times.

Fill in the blank(s) with correct word