Database - Data Modeling with ER Model - Discussion

Discussion Forum : Data Modeling with ER Model - General Questions (Q.No. 1)
1.
Which of the following indicates the maximum number of entities that can be involved in a relationship?
Minimum cardinality
Maximum cardinality
ERD
Greater Entity Count (GEC)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
8 comments Page 1 of 1.

Vikash Kumar Shaw said:   1 decade ago
Cardinality ratio is the property of relationship set that indicates the ratio in which entities of different entity sets are related by relationship set or by itself.

So, it is obvious that if cardinality increases then the ratio by which the different entities of the entity sets are related to each-other gets increased.

Yogesh said:   8 years ago
Cardinality refers to the uniqueness of data values contained in a column. High cardinality means that the column contains a large percentage of totally unique values. Low cardinality means that the column contains a lot of "repeats" in its data range.

Shahid Malik said:   7 years ago
With reference to the definition, "The number of occurrences of one entity that are associated with the number of occurrences in another entity are known as cardinality".

Omkar said:   1 decade ago
Cardinality refers to number of rows in table whereas Degree refers to number attributes in table.

Cardinality can be classified as High, Normal, Low.

Elie Twajamahoro said:   6 years ago
The answer is C because ERD is the one which identifies all entities within the database.

Rahul said:   1 decade ago
Because cardinality refers to the number of attribute in the table.

Shalu rishabh said:   1 decade ago
Cardinality is no of entities involved.
(1)

Abebe said:   9 years ago
Cardinality means type of relationship.

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