Question: For a Binary relationship set R between entity sets A and B,the ________ express the number of entities to which another entity can be associated.
Answer:
Mapping Cardinalities also known as cardinality ratio are most useful in describing binary relationship sets, although they can contribute to the description of relationship sets that involve more than two entity sets
MCQ: For a Binary relationship set R between entity sets A and B,the ________ express the number of entities to which another entity can be associated.
Explanation:
Mapping Cardinalities also known as cardinality ratio are most useful in describing binary relationship sets, although they can contribute to the description of relationship sets that involve more than two entity sets
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Related Questions
- 1. For a binary relationship set R between entity sets A and B, the Mapping Cardinality is ONE TO ONE if
- 2. For a binary relationship set R between entity sets A and B,the Mapping Cardinality is ONE TO MANY if
- 3. For a binary relationship set R between entity sets A and B,the Mapping Cardinality is MANY to ONE if
- 4. For a binary relationship set R between entity sets A and B, the Mapping Cardinality is MANY to MANY if
- 5. Which one of the following allows us to uniquely identify the entity in the entity set?
- 6. A_______is a set of one or more attributes that, taken collectively; allow us to identify uniquely an entity in the entity set.
- 7. A Super keys for which no proper subset is a super key. Such a minimal Super keys are called _______
- 8. We shall use the term ________ to denote a candidate key that is chosen by the database designer as the principal means of identifying entities within in an entity set.
- 9. The _______ should be chosen such that its attributes are never, or very rarely changed.
- 10. ________ is the columns of a table that points to theĀ candidate key of another table.
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