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### GATE CSE 2004

Consider the following entity relationship diagram $$(ERD),$$ where two entities $$E1$$ and $$E2$$ have a relation $$R$$ of cardinality $$1:m.$$

The attributes of $$E1$$ are $$A11, A12$$ and $$A13$$ where $$A11$$ is the key attribute. The attributes of $$E2$$ are $$A21, A22$$ and $$A23$$ where $$A21$$ is the key attribute and $$A23$$ is a multi-valued attribute. Relation $$R$$ does not have any attribute. A relational database containing minimum number of tables with each table satisfying the requirements of the third normal form $$(3NF)$$ is designed form the above $$ERD.$$ The minimum number of tables in the database is

A
$$2$$
B
$$3$$
C
$$4$$
D
$$5$$
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#### Questions Asked from Er Diagrams

On those following papers in Marks 2
Number in Brackets after Paper Indicates No. of Questions
GATE CSE 2018 (1)
GATE CSE 2008 (2)
GATE CSE 2005 (2)
GATE CSE 2004 (1)

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Class 12