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GATE CS 2021 : Database Quiz 1
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Question 1
Specialization is denoted by ________ in ER diagram
Question 2
Which one of the following is used to represent the supporting many-one relationships of a weak entity set in an entity-relationship diagram?
Question 3
Given a basic ER and Relational model then which of the following is incorrect:
Question 4
E-R modeling technique is a:
Question 5
Which of the following is true regarding many to many mapping between two relations?
Question 6
In an Entity-Relationship (ER) model, suppose R is a many-to-one relationship from entity set E1 to entity set E2. Assume that E1 and E2 participate totally in R and that the cardinality of E1 is greater than the cardinality of E2.
Which one of the following is true about R?
Which one of the following is true about R?
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GATE & PSU CSDatabasesSep 21GATE & PSU CS
