What’s the meaning of entity relation arrow icon?
Looking at draw.io Entity Relation
draw.io
Arrow shows the numerical value of the relationship.
0 to many optional
1 to many
1 mandatory
1 to 1
0 to 1
many
many to many
1 optional to many optional
1 mandatory to many mandatory
many mandatory to many mandatory
many optional to many option
Extreamly rich in variety isn’t it??
