COMPUTER FUNDAMENTALS

COMPUTER APPLICATIONS

DATABASE MANAGEMENT SYSTEMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In a relational model, a row is known as ____
A
Domain
B
Degree
C
Tuple
D
Attributes
Explanation: 

Detailed explanation-1: -The relational data model represents a table of values (or data table). Each row of the table, therefore, represents a collection of related data values and hence typically corresponds to real world entity or relationship. Formally, a row is called a tuple.

Detailed explanation-2: -In a relational database, a tuple contains all the data for an individual record. For example, in a database containing client contact information, the fields may be categories such as name, phone number, email address and mailing address, while a tuple for that database could be: Bill Gates. 206-555-1234.

Detailed explanation-3: -Hence, a single row is also termed a “record” as it contains all the information of a student. This row or record is termed a Tuple in DBMS. Hence Tuple in DBMS is just a row representing some inter-related data of a particular entity such as student, employee, user, etc.

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