Question
Explain the following concepts with respect to the relational data model, giving one data-science-oriented example for each:
Candidate Key
Functional Dependency
Referential Integrity
Selection Operation
Projection Oeration
Answer :
Word Count : 275
In the relational data model, a Candidate Key is a minimal set of attributes that uniquely identifies each tuple in a relation. A relation may have multiple candidate keys, but each must ensure uniqueness and contain no redundant attribute. For example, in a data science project involving customer analytics, a table named Customers may contain attributes such as CustomerID, Email, Name, and Phone. Both CustomerID and Email could ________ ___ ___ ______ ___ _______ _____.
_____ ________ _____ ________ ____ _________ ____ ___ _____ _____ _________.
__________ ______ _______ _________ _______ ____ ______ _________.
_______ _________ ________ ___ _______ _________ __________ ______ __________.
________ ____ __________ _________ _______ _______.
______ ____ __________ __________ _____ _________ ___ _________ __________ __________.
_________ __________ _________ __________ ______ _______ __________ _________.
______ _______ _______ __________ _____ _________.
___ ___ ______ _______ ______ ___ __________ _____ _____ _______.
_______ ____ ________ ______ ____.
_____ __________ _________ ______ ___ _________ ______ ______ _________ __________.
_________ ___ ________ ____ _____ _______ _____.
_________ ___ ______ _____ ________ ________ _________ _________ _____.
________ ________ _________ ___ ____ _________ __________.
______ __________ _________ ___ ___ ___ ______ _____ _______ ______ _________.
_____ ________ __________ _____ ____ _____ _________ __________ ______ __________ ____.
______ ________ ____ __________ ____.
___ _____ ________ __________ _________ _________ _____.
_______ __________ __________ _________ ______ _________ ____ ___ _________ ______.
________ ________ __________ _________ ________.
______ ___ __________ ______ ___ ____.
__________ _____ ________ _______ __________ _____ ____ ________ ____ _________.
_________ ______ ___ _______ _________ ________ ______ ___.
____ _______ ___ ___ ____.
______ ________ ________ _________ ___ _________ _________ _________ ____ ____.
_______ ________ ________ _____ ______ ____.
Get Full Answer on WhatsApp
In the relational data model, a Candidate Key is a minimal set of attributes that uniquely identifies each tuple in a relation. A relation may have multiple candidate keys, but each must ensure uniqueness and contain no redundant attribute. For example, in a data science project involving customer analytics, a table named Customers may contain attributes such as CustomerID, Email, Name, and Phone. Both CustomerID and Email could ________ ___ ___ ______ ___ _______ _____.
_____ ________ _____ ________ ____ _________ ____ ___ _____ _____ _________.
__________ ______ _______ _________ _______ ____ ______ _________.
_______ _________ ________ ___ _______ _________ __________ ______ __________.
________ ____ __________ _________ _______ _______.
______ ____ __________ __________ _____ _________ ___ _________ __________ __________.
_________ __________ _________ __________ ______ _______ __________ _________.
______ _______ _______ __________ _____ _________.
___ ___ ______ _______ ______ ___ __________ _____ _____ _______.
_______ ____ ________ ______ ____.
_____ __________ _________ ______ ___ _________ ______ ______ _________ __________.
_________ ___ ________ ____ _____ _______ _____.
_________ ___ ______ _____ ________ ________ _________ _________ _____.
________ ________ _________ ___ ____ _________ __________.
______ __________ _________ ___ ___ ___ ______ _____ _______ ______ _________.
_____ ________ __________ _____ ____ _____ _________ __________ ______ __________ ____.
______ ________ ____ __________ ____.
___ _____ ________ __________ _________ _________ _____.
_______ __________ __________ _________ ______ _________ ____ ___ _________ ______.
________ ________ __________ _________ ________.
______ ___ __________ ______ ___ ____.
__________ _____ ________ _______ __________ _____ ____ ________ ____ _________.
_________ ______ ___ _______ _________ ________ ______ ___.
____ _______ ___ ___ ____.
______ ________ ________ _________ ___ _________ _________ _________ ____ ____.
_______ ________ ________ _____ ______ ____.
Get Full Answer on WhatsApp
IGNOU NEWS
Assignment Submission Last Date Extended Till 30 June 2026 Click Here★★★IGNOU June 2026 TEE Date Sheet Released Click Here★★★