MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

DATABASE MANAGEMENT SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The attribute refers to a ____ of a table
A
Record
B
Foreign key
C
Primary key
D
Field
Explanation: 

Detailed explanation-1: -A row, or record, is also known as a tuple. The columns in a table is a field and is also referred to as an attribute.

Detailed explanation-2: -An attribute defines a particular property of an object, element or file. It can also refer to a specific value for a given instance of that property.

Detailed explanation-3: -In relational databases, attributes are the describing characteristics or properties that define all items pertaining to a certain category applied to all cells of a column. The rows, instead, are called tuples, and represent data sets applied to a single entity to uniquely identify each item.

Detailed explanation-4: -An attribute refers to the quality of a characteristic. The theory of attributes deals with qualitative types of characteristics that are calculated by using quantitative measurements.

Detailed explanation-5: -In a relational database, a column is a set of data values of a particular simple type, one value for each row of the database. A column can also be called an attribute.

There is 1 question to complete.