데이터 베이스정보처리기사(구) · 2007년09월02일 · 7/100
7.Which of following is not a component of Entity-Relationship diagram?
1
Rectangles, which represent entity sets
2
Ellipses, which represent database operations정답
3
Diamond, which represent relationships among entity sets
4
Lines, which link attributes to entity sets and entity sets to relationships
해설
Ellipse(타원) - Attribute(속성)타입