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GATE CSE

Er Diagrams

Database Management System

Previous Years Questions

Marks 1

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Which one of the following is used to represent the supporting many-one relationships of a weak entity set in an entity-...
GATE CSE 2020
Which of the following is NOT a superkey in a relational schema with attributes $$V, W, X, Y, Z$$ and primary key $$V Y?...
GATE CSE 2016 Set 1
Given an instance of the STUDENTS relation as shown below: For (StudentName, StudentAge) to be a key for this instance...
GATE CSE 2014 Set 2
An index is clustered, if
GATE CSE 2013
Given the basic $$ER$$ and relational models, which of the following is INCORRECT?
GATE CSE 2012
Consider a relation table with a single record for each registered student with a single record for each registered stud...
GATE CSE 2011
Consider the entities 'hotel room', and 'person' with a many to many relationship 'lodging' as shown below If we wish ...
GATE CSE 2005

Marks 2

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In an Entity-Relationship $$(ER)$$ model, suppose $$R$$ is a many-to-one relationship from entity set $$E1$$ to entity s...
GATE CSE 2018
Consider the following $$ER$$ diagram Which of the following is a correct attribute set for one of the tables for the ...
GATE CSE 2008
Consider the following $$ER$$ diagram The minimum number of table needed to represent $$M,$$ $$N,$$ $$P, R1, R2$$ is ...
GATE CSE 2008
The following table has two attributes $$A$$ and $$C$$ where $$A$$ is the primary key and $$C$$ is the foreign key refer...
GATE CSE 2005
Let $${E_1}$$ and $${E_2}$$ be two entities in an E-R diagram with simple single-valued attributes, $${E_1}$$ and $${E_2...
GATE CSE 2005
Consider the following entity relationship diagram $$(ERD),$$ where two entities $$E1$$ and $$E2$$ have a relation $$R$$...
GATE CSE 2004

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