What does it mean for an attribute to have a partial dependency in a relation?It depends on the entire candidate keyIt depends on only part of the candidate keyIt depends on non-prime attributesIt does not depend on any keyNext
Question
What does it mean for an attribute to have a partial dependency in a relation?It depends on the entire candidate keyIt depends on only part of the candidate keyIt depends on non-prime attributesIt does not depend on any keyNext
Solution
In the context of database normalization, a partial dependency occurs when an attribute depends on only part of a candidate key. A candidate key is a set of one or more columns that can identify a unique row in a table. If an attribute's value can be determined using a subset of the columns in a candidate key, then that attribute has a partial dependency. This is considered undesirable in a normalized database because it can lead to redundancy and update anomalies.
Similar Questions
What does it mean for an attribute to have a partial dependency in a relation?
What is a partial dependency in the context of database normalization?Question 9Answera.When all non-key attributes are dependent on the whole candidate keyb.When a non-key attribute is dependent on a non-prime attributec.When a non-key attribute is dependent on multiple candidate keysd.When a non-key attribute is dependent on part of a candidate key
A relation is in ____________ if an attribute of a composite key is dependent on an attribute of other composite key.
Which attributes are considered prime attributes in a relation?Attributes that are part of any candidate keyAttributes that are part of the primary keyAttributes that are not involved in any functional dependencyAttributes that uniquely identify each tuple in the relationExplanation for answerReview AnswerNext
A relation is in ____________ if an attribute of a composite key is dependent on an attribute of other composite key.Options2NF3NFBCNF1NF
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