मराठी
Tamil Nadu Board of Secondary EducationHSC Science Class 12

Revision: Introduction to Database Management System Computer Applications HSC Science Class 12 Tamil Nadu Board of Secondary Education

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Definitions [4]

Define database

Database is a collection of related data items stored in an organized manner.
A Database consists of different objects like table, query, form, and report.

Define Data Model.

Data models define how data is connected to each other and how they are processed and stored inside the system.

Define Single valued attributes.

A single-valued attribute contains only one value for the attribute and they don’t have multiple numbers of values.

For Example Age.

Define multi-valued attributes.

A multi-valued attribute has more than one value for that particular attribute.
For Example Degree.

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