The column A contains the symbols which are used in ER diagrams and column B contains their functions. Match the symbols with their functions.
|
Column A |
Column B |
|
1.Double ellipses |
(p) indicates total participation of an entity into a relation. |
|
2.Dashed ellipses |
(q) multivalued attributes |
|
3.Double lines |
(r) represent weak entity sets |
|
4.Double Rectangles |
(s) derived attributes. |
1
p, q, r, s
2
r, p, q, s
3
q, s, p, r
4
q, r, s, p
5
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