[Solved] By relation cardinality we mean

Q.	By relation cardinality we mean
A.	number of items in a relationship
B.	number of relationships in which an entity can appear
C.	number of items in an entity
D.	number of entity sets which may be related to a given entity
Answer» B. number of relationships in which an entity can appear

1.6k

Do you find this helpful?

View all MCQs in

DataBase Management System (DBMS)

Discussion

No comments yet

Related MCQs

Given the relation Supplier(s_id, p_order, s_name, qty) Given that there is a unique s_name for each s_id and that s_id, p_order is a composite key, find the correct statement among the following: i. this relation is a BCNF ii. this is 3 NF relation iii. this is a 2 NF relation iv. this is a 1 NF relation
An attribute in a relation is a foreign key if the key from one relation is used as an attribute in that relation.
The relation with the attribute which is the primary key is referenced in another relation. The relation which has the attribute as a primary key is called
A on an attribute of a relation is a data structure that allows the database system to ﬁnd those tuples in the relation that have a speciﬁed value for that attribute eﬃciently, without scanning through all the tuples of the relation.
An attribute in a relation is a foreign key if the _______ key from one relation is used as an attribute in that relation.
The relation with the attribute which is the primary key is referenced in another relation. The relation which has the attribute as a primary key is called ______________
A attribute in a relation is a foreign key if the _______ key from one relation is used as an attribute in that relation .
The relation with the attribute which is the primary key is referenced in another relation. The relation which has the attribute as primary key is called
Consider a directed line(->) from the relationship set advisor to both entity sets instructor and student. This indicates _________ cardinality
In the relational modes, cardinality is termed as: