Data And Database Modelling Flashcards
1
Q
What is a database?
A
A database is collection of of related data that is shared and used to support particular activities of an organization.
2
Q
What is data modeling?
A
This is the first step in making a database.
A data model is a set of concepts that describes the structure, the operations for manipulating and the constraints it should obey.
It defines the relationship between entities and attributes.
3
Q
Aim of data modeling?
A
It describes:
The data contained in the database
The relationship between data items
The constraints on the data
